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The Nunnery Complex in the ruins of the great Mayan city of Chichen Itza, Yucatan, Mexico. The Pre-Hispanic City of Chichen-Itza is a UNESCO World Heritage Site.

13848274 - The Nunnery Complex in the ruins of the great Mayan city of Chichen Itza, Yucatan, Mexico. The Pre-Hispanic City of Chichen-Itza is a UNESCO World Heritage Site.

Face thought to depict Bodhisattva Avalokiteshvara, Bayon Temple ruins, Angkor Thom (12th century temple complex), Angkor World Heritage Site, Siem Reap, Cambodia (Large format sizes available)

13796174 - Face thought to depict Bodhisattva Avalokiteshvara, Bayon Temple ruins, Angkor Thom (12th century temple complex), Angkor World Heritage Site, Siem Reap, Cambodia (Large format sizes available)

13999031 - Structures in the West Group or Plaza R,a residential complex in the Mayan ruins in Yaxha-Nakun-Naranjo National Park,Guatemala.

A framing of most of the constellation of Perseus, with the brightest star in the constellation, Mirfak or Alpha Persei at centre. At lower right is Algol, the Demon Star. At top is the Double Cluster of stars, aka NGC 868 and 884, while at top left is the Heart and Soul Nebula complex, aka IC 1805 and IC 1848. The small star cluster NGC 1245 lies between Mirfak and Algol. The bright Messier cluster M34 is just off frame at right. The bright blue stars surrounding Mirfak are the Perseus OB3 Association, or Melotte 20, aka the Alpha Persei Moving Group.

13899503 - A framing of most of the constellation of Perseus, with the brightest star in the constellation, Mirfak or Alpha Persei at centre. At lower right is Algol, the Demon Star. At top is the Double Cluster of stars, aka NGC 868 and 884, while at top left is the Heart and Soul Nebula complex, aka IC 1805 and IC 1848. The small star cluster NGC 1245 lies between Mirfak and Algol. The bright Messier cluster M34 is just off frame at right. The bright blue stars surrounding Mirfak are the Perseus OB3 Association, or Melotte 20, aka the Alpha Persei Moving Group.

13796178 - Suor Prat towers, Angkor Thom (12th century temple complex), Angkor World Heritage Site, Siem Reap, Cambodia

The southern Milky Way from Canis Major to Carina, including Puppis and Vela and the large Gum Nebula complex, an interstellar bubble blown by stellar winds. Sirius at at right and Canopus at lower left. The open cluster NGC 251t6 is at far left. M41 cluster is left of Sirius.

13900254 - The southern Milky Way from Canis Major to Carina, including Puppis and Vela and the large Gum Nebula complex, an interstellar bubble blown by stellar winds. Sirius at at right and Canopus at lower left. The open cluster NGC 251t6 is at far left. M41 cluster is left of Sirius.

$One of a short series of images showing the development of an aurora display from a classic arc into a more complex pattern of concentric arcs and with loops and swirls. This was Feb 5, 2019 from the Churchill Northern Studies Centre. The outburst lasted only 5 minutes or so and might have been due to the Bz interplanetary field turning south briefly. After this series, the display faded and fractured into faint arcs and a diffuse glow across the sky.$

13899715 - One of a short series of images showing the development of an aurora display from a classic arc into a more complex pattern of concentric arcs and with loops and swirls. This was Feb 5, 2019 from the Churchill Northern Studies Centre. The outburst lasted only 5 minutes or so and might have been due to the Bz interplanetary field turning south briefly. After this series, the display faded and fractured into faint arcs and a diffuse glow across the sky.

This is a framing of the rich array of nebulas in central Auriga. The complex of star cluster Stock 8 and IC 417 is at upper left. The large nebula at lower centre is IC 410 with the star cluster NGC 1893 embedded in it. The large nebula at right is IC 405, aka the Flaming Star Nebula, with a mix of red emission and blue reflection nebulosity.

13899593 - This is a framing of the rich array of nebulas in central Auriga. The complex of star cluster Stock 8 and IC 417 is at upper left. The large nebula at lower centre is IC 410 with the star cluster NGC 1893 embedded in it. The large nebula at right is IC 405, aka the Flaming Star Nebula, with a mix of red emission and blue reflection nebulosity.

Stairway to the top of of Structure 117 in the Mayan ruins in Yaxha-Nakun-Naranjo National Park,Guatemala. It is a tall unecavated mound in the larger astronomical complex.

13999671 - Stairway to the top of of Structure 117 in the Mayan ruins in Yaxha-Nakun-Naranjo National Park,Guatemala. It is a tall unecavated mound in the larger astronomical complex.

13999114 - Structures in the West Group or Plaza R,a residential complex in the Mayan ruins in Yaxha-Nakun-Naranjo National Park,Guatemala.

The colourful region in and around the Coathanger asterism in Vulpecula the Fox. The grouping is not a star cluster per se, though it is catalogued as one, Collinder 399. It is also known as Brocchi's Cluster. A true star cluster, NGC 6802, is located at the east (left) end of the Coathanger, as the small clump of stars. The area is also rich in faint nebulosity, notably: the Sharpless 2-83 reflection nebula complex above the Coathanger, and the small, round Sharpless 2-82 emission and reflection nebula below the Coathanger. The large area of red emission nebula at bottom right is not catalogu

13899982 - The colourful region in and around the Coathanger asterism in Vulpecula the Fox. The grouping is not a star cluster per se, though it is catalogued as one, Collinder 399. It is also known as Brocchi's Cluster. A true star cluster, NGC 6802, is located at the east (left) end of the Coathanger, as the small clump of stars. The area is also rich in faint nebulosity, notably: the Sharpless 2-83 reflection nebula complex above the Coathanger, and the small, round Sharpless 2-82 emission and reflection nebula below the Coathanger. The large area of red emission nebula at bottom right is not catalogu

The sponging mouthparts consist of a fleshy, elbowed labium, at the distal end of which are large, sponge-like organs called the labella (singular, labellum). The labella is a complex structure consisting of many grooves, called pseudotrachea, which sops up liquids much like a sponge does.

13847394 - The sponging mouthparts consist of a fleshy, elbowed labium, at the distal end of which are large, sponge-like organs called the labella (singular, labellum). The labella is a complex structure consisting of many grooves, called pseudotrachea, which sops up liquids much like a sponge does.

13844437 - Scientist examining a plant sample in a research greenhouse complex

13998718 - Stairway to the top of of Structure 117 in the Mayan ruins in Yaxha-Nakun-Naranjo National Park,Guatemala. It is a tall unecavated mound in the larger astronomical complex.

This is a framing of the rich complex of nebulosity in and around the constellations of northern Cygnus and southern Cepheus, in a blend of "white light" images and images shot through a deep red hydrogen-alpha filter that isolates the red emission line from the gas clouds, bringing them out in much more detail than is otherwise possible.

13900257 - This is a framing of the rich complex of nebulosity in and around the constellations of northern Cygnus and southern Cepheus, in a blend of "white light" images and images shot through a deep red hydrogen-alpha filter that isolates the red emission line from the gas clouds, bringing them out in much more detail than is otherwise possible.

13796143 - Vietnam, Hue Imperial City. To Mieu Temple Complex, exterior

$The North America Nebula (left of centre) and the Pelican Nebula (at centre) complex in Cygnus,framed with the bright star Deneb. The Cygnus Arc of IC 5068 is at bottom. Smaller Sharpless catalogue nebulas are at upper right,notably Sh 2-112. The nebulas show up well despite this being a "stock" camera,with no filters employed. The field of view is about 7.5° by 5°,similar to binoculars. This is a stack of 5 x 5-minute exposures with the Sharpstar 61 EDPH III apo refractor and its 0.75x Reducer for f/4.4,and the old Canon 6D DSLR at ISO 800,all on the ZWO AM5 mount autoguided with the ASIAir,a$

13999717 - The North America Nebula (left of centre) and the Pelican Nebula (at centre) complex in Cygnus,framed with the bright star Deneb. The Cygnus Arc of IC 5068 is at bottom. Smaller Sharpless catalogue nebulas are at upper right,notably Sh 2-112. The nebulas show up well despite this being a "stock" camera,with no filters employed. The field of view is about 7.5° by 5°,similar to binoculars. This is a stack of 5 x 5-minute exposures with the Sharpstar 61 EDPH III apo refractor and its 0.75x Reducer for f/4.4,and the old Canon 6D DSLR at ISO 800,all on the ZWO AM5 mount autoguided with the ASIAir,a

The complex area of clusters and nebulosity in central Auriga, including: M38 the Starfish Cluster and its smaller companion cluster NGC 1907; the emission/reflection nebulas NGC 1931, IC 417, IC 410 and IC 405 (from right to left here). Magenta and cyan (from emission and reflection components) IC 405 at right is the Flaming Star Nebula. Between IC 405 and IC 410 is the asterism known as The Little Fish.

13898788 - The complex area of clusters and nebulosity in central Auriga, including: M38 the Starfish Cluster and its smaller companion cluster NGC 1907; the emission/reflection nebulas NGC 1931, IC 417, IC 410 and IC 405 (from right to left here). Magenta and cyan (from emission and reflection components) IC 405 at right is the Flaming Star Nebula. Between IC 405 and IC 410 is the asterism known as The Little Fish.

A mosaic of the region around the centre of the Milky Way in Sagittarius and Scorpius. The field takes in the Milky Way from the Cat's Paw Nebula at bottom edge to the Eagle Nebula at top left. In between from top to bottom are the Swan Nebula (M17), the Small Sagittarius Starcloud (M24), the Trifid and Lagoon Nebulas (M20 and M8) and the open clusters M6 and M7. The prominent dark nebula at right is the large Pipe Nebula (B78) with the small Snake Nebula (B72) above it. The whole complex is visible to the naked eye as the Dark Horse.

13897448 - A mosaic of the region around the centre of the Milky Way in Sagittarius and Scorpius. The field takes in the Milky Way from the Cat's Paw Nebula at bottom edge to the Eagle Nebula at top left. In between from top to bottom are the Swan Nebula (M17), the Small Sagittarius Starcloud (M24), the Trifid and Lagoon Nebulas (M20 and M8) and the open clusters M6 and M7. The prominent dark nebula at right is the large Pipe Nebula (B78) with the small Snake Nebula (B72) above it. The whole complex is visible to the naked eye as the Dark Horse.

13848499 - The MGM hotel and casino in Las Vegas. The MGM Grand is the third largest hotel in the world and the largest hotel resort complex in the USA

13848191 - Flats and potted plants in a research greenhouse complex

The Iglesia or Church the Nunnery Complex in the ruins of the great Mayan city of Chichen Itza, Yucatan, Mexico. The Pre-Hispanic City of Chichen-Itza is a UNESCO World Heritage Site. In the foreground is a residential area.

13847391 - The Iglesia or Church the Nunnery Complex in the ruins of the great Mayan city of Chichen Itza, Yucatan, Mexico. The Pre-Hispanic City of Chichen-Itza is a UNESCO World Heritage Site. In the foreground is a residential area.

13845731 - Scientist examining a plant sample in a research greenhouse complex

13844295 - Tourist at The British Residency Complex, Lucknow, Uttar Pradesh, India

13999687 - Stairway to the top of of Structure 117 in the Mayan ruins in Yaxha-Nakun-Naranjo National Park,Guatemala. It is a tall unecavated mound in the larger astronomical complex.

13999605 - Structures in the West Group or Plaza R,a residential complex in the Mayan ruins in Yaxha-Nakun-Naranjo National Park,Guatemala.

13900266 - Aerial view of the Eastern Beach Bathing Complex in Geelong, Australia

A mosaic of the region around the Small Sagittarius Starcloud and Dark Horse dark nebula complex. The field takes in the Milky Way from the Lagoon Nebula at bottom to the Eagle Nebula at top left. In between from top to bottom are the Swan Nebula (M17), and the Small Sagittarius Starcloud (M24). Flanking the bright M24 starcloud are the large open clusters M23 (right) and M25 (left). At bottom left is the M22 globular star cluster. The prominent dark nebula at right is the large Pipe Nebula (B78) with the small Snake Nebula (B72) above it. The whole complex is visible to the naked eye as the D

13898305 - A mosaic of the region around the Small Sagittarius Starcloud and Dark Horse dark nebula complex. The field takes in the Milky Way from the Lagoon Nebula at bottom to the Eagle Nebula at top left. In between from top to bottom are the Swan Nebula (M17), and the Small Sagittarius Starcloud (M24). Flanking the bright M24 starcloud are the large open clusters M23 (right) and M25 (left). At bottom left is the M22 globular star cluster. The prominent dark nebula at right is the large Pipe Nebula (B78) with the small Snake Nebula (B72) above it. The whole complex is visible to the naked eye as the D

13848501 - The Cemetery Complex in the ruins of the Mayan city of Uxmal in Yucatan, Mexico. Pre-Hispanic Town of Uxmal - a UNESCO World Heritage Center.

13795691 - Indein Stupa Complex, Inle Lake, Myanmar

The Terrace of the Elephants, Angkor Thom (12th century temple complex), Angkor World Heritage Site, Siem Reap, Cambodia (Large format sizes available)

13796177 - The Terrace of the Elephants, Angkor Thom (12th century temple complex), Angkor World Heritage Site, Siem Reap, Cambodia (Large format sizes available)

Double exposure of a modern housing complex on the left bank of the river Donau in Viennna, Austria, as seen from the Leonard Bernstein Street.

71432615 - Double exposure of a modern housing complex on the left bank of the river Donau in Viennna, Austria, as seen from the Leonard Bernstein Street.

71425330 - Longest castle in the world - castle complex in Burghausen, Bavaria, Germany

13998669 - Structures in the West Group or Plaza R,a residential complex in the Mayan ruins in Yaxha-Nakun-Naranjo National Park,Guatemala.

This is the complex of nebulosity that has become known as the Cosmic Question Mark, a good name as its official designations are confusing.

13899323 - This is the complex of nebulosity that has become known as the Cosmic Question Mark, a good name as its official designations are confusing.

13898249 - Aerial view of the Eastern Beach Bathing Complex in Geelong, Australia

The Temple of Two Columns, part of the VG Complex on the North Platform of the pre-Columbian Zapotec ruins of Monte Alban in Oaxaca, Mexico. A UNESCO World Heritage Site.

13844744 - The Temple of Two Columns, part of the VG Complex on the North Platform of the pre-Columbian Zapotec ruins of Monte Alban in Oaxaca, Mexico. A UNESCO World Heritage Site.

13821142 - Religious faithful praying within the monastic complex of the Trinity Lavra of St. Sergius in Sergiyev Posad

13999657 - Stairway to the top of of Structure 117 in the Mayan ruins in Yaxha-Nakun-Naranjo National Park,Guatemala. It is a tall unecavated mound in the larger astronomical complex.

View of Lake Yaxha from the top Structure 117 in the Mayan ruins in Yaxha-Nakun-Naranjo National Park,Guatemala. This tall unecavated mound is part of the larger astronomical complex.

13998775 - View of Lake Yaxha from the top Structure 117 in the Mayan ruins in Yaxha-Nakun-Naranjo National Park,Guatemala. This tall unecavated mound is part of the larger astronomical complex.

The region of the summer Milky Way in northern Cygnus containing a rich collection of bright nebulas: the North America Nebula at centre and the Gamma Cygni complex at right, plus the dark nebulas Le Gentil 3, the Funnel Cloud Nebula at upper left, the Northern Coal Sack at centre, and the finger-like B168 at lower left. The bright star at centre is Deneb. M39 is at lower left.

13900084 - The region of the summer Milky Way in northern Cygnus containing a rich collection of bright nebulas: the North America Nebula at centre and the Gamma Cygni complex at right, plus the dark nebulas Le Gentil 3, the Funnel Cloud Nebula at upper left, the Northern Coal Sack at centre, and the finger-like B168 at lower left. The bright star at centre is Deneb. M39 is at lower left.

13844855 - The Cemetery Complex in the ruins of the Mayan city of Uxmal in Yucatan, Mexico. Pre-Hispanic Town of Uxmal - a UNESCO World Heritage Center.

The Orion Nebula complex consisting of M42, M43 and the reflection nebula area known as the Running Man Nebula, NGC 1973-5-7. NGC 1981 is the blue star cluster at top north edge. North is up, though in the sky from Australia where this was shot the object appeared upside down compared to this northern-centric view.

13899999 - The Orion Nebula complex consisting of M42, M43 and the reflection nebula area known as the Running Man Nebula, NGC 1973-5-7. NGC 1981 is the blue star cluster at top north edge. North is up, though in the sky from Australia where this was shot the object appeared upside down compared to this northern-centric view.

13899799 - This is a framing of the rich array of nebulas in central Auriga. The complex of star cluster Stock 8 and IC 417 is at upper left. The large nebula at lower centre is IC 410 with the star cluster NGC 1893 embedded in it. The large nebula at right is IC 405, aka the Flaming Star Nebula, with a mix of red emission and blue reflection nebulosity.

Emission nebulas in northern and central Cygnus, including the North America Nebula (NGC 7000) at lower left and the Gamma Cygni complex (IC 1318) at upper right. Deneb is the bright star at left, while Gamma Cygni itself is at upper right.

13898156 - Emission nebulas in northern and central Cygnus, including the North America Nebula (NGC 7000) at lower left and the Gamma Cygni complex (IC 1318) at upper right. Deneb is the bright star at left, while Gamma Cygni itself is at upper right.

13845678 - The Iglesia or Church the Nunnery Complex in the ruins of the great Mayan city of Chichen Itza, Yucatan, Mexico. The Pre-Hispanic City of Chichen-Itza is a UNESCO World Heritage Site.

13844640 - The Nunnery Complex in the ruins of the great Mayan city of Chichen Itza, Yucatan, Mexico. The Pre-Hispanic City of Chichen-Itza is a UNESCO World Heritage Site.

This is the complex of nebulosity around the star Gamma Cygni,aka Sadr,in central Cygnus,and labeled IC1318 or the Butterfly Nebula. The star cluster NGC 6910 is at top centre. The dark dust lane cutting through the nebula is catalogued as Lynds Dark Nebula 889.

13999028 - This is the complex of nebulosity around the star Gamma Cygni,aka Sadr,in central Cygnus,and labeled IC1318 or the Butterfly Nebula. The star cluster NGC 6910 is at top centre. The dark dust lane cutting through the nebula is catalogued as Lynds Dark Nebula 889.

This is a framing of the rich complex of nebulosity in and around the constellation of Cygnus, in a blend of "white light" images and images shot through a deep red hydrogen-alpha filter that isolates the red emission line from the gas clouds, bringing them out in much more detail than is otherwise possible.

13899816 - This is a framing of the rich complex of nebulosity in and around the constellation of Cygnus, in a blend of "white light" images and images shot through a deep red hydrogen-alpha filter that isolates the red emission line from the gas clouds, bringing them out in much more detail than is otherwise possible.

Nebulosity in the heart of Cygnus the Swan, including the North America Nebula and Pelican Nebula at left (NGC 7000 and IC 5070) and Gamma Cygni complex at right (IC 1318). The Crescent Nebula (NGC 6888) is at lower right. This is a stack of 5 x 4 minute exposures at f/2 with the 135mm lens and modified Canon 5D MkII at ISO 800, plus another three similar exposure images but taken thru the Kenko Softon filter for the star glows. Taken from home Sept 10, 2013.

13898272 - Nebulosity in the heart of Cygnus the Swan, including the North America Nebula and Pelican Nebula at left (NGC 7000 and IC 5070) and Gamma Cygni complex at right (IC 1318). The Crescent Nebula (NGC 6888) is at lower right. This is a stack of 5 x 4 minute exposures at f/2 with the 135mm lens and modified Canon 5D MkII at ISO 800, plus another three similar exposure images but taken thru the Kenko Softon filter for the star glows. Taken from home Sept 10, 2013.

Columns of the Nunnery Complex in the ruins of the great Mayan city of Chichen Itza, Yucatan, Mexico. The Pre-Hispanic City of Chichen-Itza is a UNESCO World Heritage Site.

13849133 - Columns of the Nunnery Complex in the ruins of the great Mayan city of Chichen Itza, Yucatan, Mexico. The Pre-Hispanic City of Chichen-Itza is a UNESCO World Heritage Site.

13846839 - Flats and potted plants in a research greenhouse complex

13795833 - Iran, Tehran, Niyavaran Palace Complex, Palace Of The Last Shah, Tilework

13795794 - Asia. India, The Qtub Minar of the Alai-Darwaza complex in New Delhi.

This is a portrait of the complex of nebulosity in northern Cygnus,with many wreaths and arcs of hydrogen gas interspersed with patches and tendrils of dark dust of varying densities. The main nebula is the North America (NGC 7000) at upper left,with the smaller Pelican Nebula (IC 5067) beside it in the "Atlantic Ocean." At bottom right is the Gamma Cygni complex,aka the Butterfly Nebula or IC 1318,while at the bottom right edge is the small arc of the Crescent Nebula (NGC 6888). The field is filled with other fainter nebulas catalogued in the Sharpless and DWB catalogues. Above Gamma Cygni ri

13999246 - This is a portrait of the complex of nebulosity in northern Cygnus,with many wreaths and arcs of hydrogen gas interspersed with patches and tendrils of dark dust of varying densities. The main nebula is the North America (NGC 7000) at upper left,with the smaller Pelican Nebula (IC 5067) beside it in the "Atlantic Ocean." At bottom right is the Gamma Cygni complex,aka the Butterfly Nebula or IC 1318,while at the bottom right edge is the small arc of the Crescent Nebula (NGC 6888). The field is filled with other fainter nebulas catalogued in the Sharpless and DWB catalogues. Above Gamma Cygni ri

13998352 - View of Lake Yaxha from the top Structure 117 in the Mayan ruins in Yaxha-Nakun-Naranjo National Park,Guatemala. This tall unecavated mound is part of the larger astronomical complex.

Faces thought to depict Bodhisattva Avalokiteshvara, Bayon Temple ruins, Angkor Thom (12th century temple complex), Angkor World Heritage Site, Siem Reap, Cambodia ()

71410162 - Faces thought to depict Bodhisattva Avalokiteshvara, Bayon Temple ruins, Angkor Thom (12th century temple complex), Angkor World Heritage Site, Siem Reap, Cambodia ()

13999590 - A temple pyramid in Plaza C,thought to be an astronomical complex the Mayan ruins in Yaxha-Nakun-Naranjo National Park,Guatemala.

13998850 - View of Lake Yaxha from the top Structure 117 in the Mayan ruins in Yaxha-Nakun-Naranjo National Park,Guatemala. This tall unecavated mound is part of the larger astronomical complex.

Steps of Temple XIV in the foreground, with Complex XV behind, in the ruins of the Mayan city of Palenque, Palenque National Park, Chiapas, Mexico. A UNESCO World Heritage Site.

13844261 - Steps of Temple XIV in the foreground, with Complex XV behind, in the ruins of the Mayan city of Palenque, Palenque National Park, Chiapas, Mexico. A UNESCO World Heritage Site.

13795796 - India. Column details at the Alai-Darwaza complex in New Delhi.

71431326 - Double exposure of the facade of a large housing complex at Webersgade in copenhagen, Denmark.

13998515 - View of Lake Yaxha from the top Structure 117 in the Mayan ruins in Yaxha-Nakun-Naranjo National Park,Guatemala. This tall unecavated mound is part of the larger astronomical complex.

13847497 - The British Residency Complex, Lucknow, Uttar Pradesh, India

13845398 - Flats and potted plants in a research greenhouse complex

71438037 - Golden statues of monks in the garden of the Buddhist temple complex Wat Phra Singh, Chiang Mai, Thailand, Asia

71437343 - Buddha statue and golden chedi of the Buddhist temple complex Wat Phra That Doi Suthep, landmark of Chiang Mai, Thailand, Asia

13999395 - A temple pyramid in Plaza C,thought to be an astronomical complex the Mayan ruins in Yaxha-Nakun-Naranjo National Park,Guatemala.

The Veil Nebula complex in Cygnus,aka the Cygnus Loop or Cirrus Nebula. This is a remnant of a supernova explosion that occured 5000 to 8000 years ago. It features a mix of red hydrogen-alpha and cyan oxygen III emission for a colourful complex of lacy filaments. The components have the catalogue numbers of NGC 6992-5 (eastern component at left) and NGC 6960 (western component at right,through the star 52 Cygni),and NGC 6974 for the middle area at top called Pickering's Triangle.

13998977 - The Veil Nebula complex in Cygnus,aka the Cygnus Loop or Cirrus Nebula. This is a remnant of a supernova explosion that occured 5000 to 8000 years ago. It features a mix of red hydrogen-alpha and cyan oxygen III emission for a colourful complex of lacy filaments. The components have the catalogue numbers of NGC 6992-5 (eastern component at left) and NGC 6960 (western component at right,through the star 52 Cygni),and NGC 6974 for the middle area at top called Pickering's Triangle.

A classic complex of auroral curtains and swirls out of the northeast sky with prominent lower greens and upper reds from oxygen. Taken February 23,2023 at the Churchill Northern Studies Centre,Churchill,Manitoba.

13998291 - A classic complex of auroral curtains and swirls out of the northeast sky with prominent lower greens and upper reds from oxygen. Taken February 23,2023 at the Churchill Northern Studies Centre,Churchill,Manitoba.

The Carina Nebula, NGC 3572, and surrounding clusters. To the upper left is NGC 3532, the Football Cluster. To the upper right is NGC 3293, the Gem Cluster To the lower left is the nebula complex NGC 3576/81. This is a stack of 5 x 10 minute exposures at f/4.3 with the Borg 77mm astrograph (330mm focal length) and filter-modified Canon 5D MkII at ISO 800. Taken from Coonabarabran, Australia, March 2014.

13898213 - The Carina Nebula, NGC 3572, and surrounding clusters. To the upper left is NGC 3532, the Football Cluster. To the upper right is NGC 3293, the Gem Cluster To the lower left is the nebula complex NGC 3576/81. This is a stack of 5 x 10 minute exposures at f/4.3 with the Borg 77mm astrograph (330mm focal length) and filter-modified Canon 5D MkII at ISO 800. Taken from Coonabarabran, Australia, March 2014.

13846798 - The Iglesia or Church the Nunnery Complex in the ruins of the great Mayan city of Chichen Itza, Yucatan, Mexico. The Pre-Hispanic City of Chichen-Itza is a UNESCO World Heritage Site.

13796047 - Turkey, Istanbul. Suleymaniye Mosque complex (Suleymaniye Camii) is an Ottoman imperial mosque located on the Third Hill of Istanbul.

71438044 - The Buddhist temple complex of Wat Phra Singh at dusk, Chiang Mai, Thailand, Asia

71432618 - Double exposure of a modern housing complex on the left bank of the river Donau in Viennna, Austria, as seen from the Leonard Bernstein Street.

A complex of halo phenomena on the evening of April 15, 2022, Good Friday of the 2022 Easter weekend, around the almost Full Moon. Ice crystals in the high cloud created the halos and arcs, set in the spring night sky, with the Big Dipper at top, Arcturus to the left, and Regulus and Leo at right. The colours of the arcs and sundogs were just visible to the unaided eye.

13900517 - A complex of halo phenomena on the evening of April 15, 2022, Good Friday of the 2022 Easter weekend, around the almost Full Moon. Ice crystals in the high cloud created the halos and arcs, set in the spring night sky, with the Big Dipper at top, Arcturus to the left, and Regulus and Leo at right. The colours of the arcs and sundogs were just visible to the unaided eye.

One of the 27 antennas of the Very Large Array (VLA) radio telescope complex in New Mexico (with others in the distance at lower right) illuminated by moonlight, on December 13, 2013, peak night for the Geminid meteor shower. A single exposure of 30 seconds with the Rokinon 14mm lens at f/2.8 and Canon 5D MkII at ISO 800. Orion is rising a lower centre. The Moon is the bright object at upper right. The Pleiades and Hyades are above centre.

13899753 - One of the 27 antennas of the Very Large Array (VLA) radio telescope complex in New Mexico (with others in the distance at lower right) illuminated by moonlight, on December 13, 2013, peak night for the Geminid meteor shower. A single exposure of 30 seconds with the Rokinon 14mm lens at f/2.8 and Canon 5D MkII at ISO 800. Orion is rising a lower centre. The Moon is the bright object at upper right. The Pleiades and Hyades are above centre.

71420100 - View from the Alhambra castle complex to the former Moorish residential area of the Albaicín in Granada, Andalusia, Spain

13849015 - The MGM hotel and casino in Las Vegas. The MGM Grand is the third largest hotel in the world and the largest hotel resort complex in the USA

In the foreground is the Temple of Two Columns with Building VG in the background, part of the VG Complex on the North Platform of the pre-Columbian Zapotec ruins of Monte Alban in Oaxaca, Mexico. A UNESCO World Heritage Site.

13846495 - In the foreground is the Temple of Two Columns with Building VG in the background, part of the VG Complex on the North Platform of the pre-Columbian Zapotec ruins of Monte Alban in Oaxaca, Mexico. A UNESCO World Heritage Site.

13796180 - Angkor Wat temple complex (12th century), Angkor World Heritage Site, Siem Reap, Cambodia (Large format sizes available)

71437348 - Golden chedi of the Buddhist temple complex Wat Phra That Doi Suthep, landmark of Chiang Mai at dusk, Thailand, Asia

71432617 - Double exposure of a modern housing complex on the left bank of the river Donau in Viennna, Austria, as seen from the Leonard Bernstein Street.

This is the central area of Cygnus and its bright Milky Way starcloud surrounded by red nebulosity. At left is the star Sadr (gamma Cygni) with the complex of nebulosity catalogued as IC 1318. At centre is the distinct Crescent Nebula, NGC 6888, a expanding nebula created by winds from a hot Wolf-Rayet star. At bottom left is the star cluster Messier 29, though looking a little lost in the rich starfields here. At top is the cluster IC 1311, looking more obvious than M29 but not observed visually and included in the NGC catalog. Odd. At far right are the large and loose star clusters NGC 6883

13899635 - This is the central area of Cygnus and its bright Milky Way starcloud surrounded by red nebulosity. At left is the star Sadr (gamma Cygni) with the complex of nebulosity catalogued as IC 1318. At centre is the distinct Crescent Nebula, NGC 6888, a expanding nebula created by winds from a hot Wolf-Rayet star. At bottom left is the star cluster Messier 29, though looking a little lost in the rich starfields here. At top is the cluster IC 1311, looking more obvious than M29 but not observed visually and included in the NGC catalog. Odd. At far right are the large and loose star clusters NGC 6883

13844578 - The Nunnery Complex in the ruins of the great Mayan city of Chichen Itza, Yucatan, Mexico. The Pre-Hispanic City of Chichen-Itza is a UNESCO World Heritage Site.

13796101 - Giant golden Buddha, Bai Dinh Buddhist Temple Complex, near Ninh Binh, Vietnam

71448400 - Puerto de la Cruz; Apartment complex in the evening light over the cliffs, district of La Paz, Tenerife, Canary Islands, Spain

71437344 - Reclining Buddha and Golden Chedi of the Buddhist temple complex Wat Phra That Doi Suthep, landmark of Chiang Mai, Thailand, Asia

71432614 - Double exposure of a modern housing complex on the left bank of the river Donau in Viennna, Austria, as seen from the Leonard Bernstein Street.

71431327 - Double exposure of the facade of a large housing complex at Webersgade in copenhagen, Denmark.

A widefield view of Orion's Belt and Sword showing the complex of nebulosity in the area. The three Belt stars are at top (L to R): Alnitak,Alnilam and Mintaka,with the dark Horsehead Nebula (B33) below Alnitak. Above Alnitak is the pinkish Flame Nebula,NGC 2024. At bottom are Messiers 42 and 43,making up the Orion Nebula,with the bluish Running Man Nebula above it,aka NGC 1973-5-7. Above it is the star cluster NGC 1981. Messier 78 is just on frame at upper left. Numerous other bits of emission and reflection nebulas populate the field amid a backdrop of faint emission nebulosity. The stars ar

13998672 - A widefield view of Orion's Belt and Sword showing the complex of nebulosity in the area. The three Belt stars are at top (L to R): Alnitak,Alnilam and Mintaka,with the dark Horsehead Nebula (B33) below Alnitak. Above Alnitak is the pinkish Flame Nebula,NGC 2024. At bottom are Messiers 42 and 43,making up the Orion Nebula,with the bluish Running Man Nebula above it,aka NGC 1973-5-7. Above it is the star cluster NGC 1981. Messier 78 is just on frame at upper left. Numerous other bits of emission and reflection nebulas populate the field amid a backdrop of faint emission nebulosity. The stars ar

The Messier star cluster M38 at left, with the smaller NGC 1907 cluster below, amid a complex field of nebulosity in central Auriga, including from left to right: IC 417 (at bottom), IC 410 (lower right), and IC 405 (at upper right), aka the Flaming Star Nebula.

13898822 - The Messier star cluster M38 at left, with the smaller NGC 1907 cluster below, amid a complex field of nebulosity in central Auriga, including from left to right: IC 417 (at bottom), IC 410 (lower right), and IC 405 (at upper right), aka the Flaming Star Nebula.

13845631 - The Cemetery Complex in the ruins of the Mayan city of Uxmal in Yucatan, Mexico. Pre-Hispanic Town of Uxmal - a UNESCO World Heritage Center.

71421957 - Armenia, Sevan. The church of Surp Arakelots at the Sevanavank Monastery complex on Lake Sevan.

71420102 - View from the Alhambra castle complex to the former Moorish residential area of the Albaicín in Granada, Andalusia, Spain

The Belt of Orion with the Horsehead Nebula at botton, the dark nebula set in the bright emission nebula IC 434. The nebula at left of the Zeta Orionis (aka Alnitak) is the Flame Nebula, NGC 2024. The reflection nebula at upper left is the M78 complex with NGC 2071. The other Belt stars are Alnilan (centre) and Mintaka (upper right). The field contains a wealth of other blue reflection and red emission nebulas.

13897998 - The Belt of Orion with the Horsehead Nebula at botton, the dark nebula set in the bright emission nebula IC 434. The nebula at left of the Zeta Orionis (aka Alnitak) is the Flame Nebula, NGC 2024. The reflection nebula at upper left is the M78 complex with NGC 2071. The other Belt stars are Alnilan (centre) and Mintaka (upper right). The field contains a wealth of other blue reflection and red emission nebulas.

Buddhist shrine, Bayon Temple ruins, Angkor Thom (12th century temple complex), Angkor World Heritage Site, Siem Reap, Cambodia (Large format sizes available)

13796176 - Buddhist shrine, Bayon Temple ruins, Angkor Thom (12th century temple complex), Angkor World Heritage Site, Siem Reap, Cambodia (Large format sizes available)

13795795 - Asia. India, Ceiling details at the Qtub Minar of the Alai-Darwaza complex in New Delhi.

11322092 - Beldi Country Club, hotel complex on the outskirts of Marrakesh, Morocco, pool