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The Roman period Odeon building, Apollonia Archaeological Park, Pojan, Albania, Europe
Applying a tag to a Leatherback turtle (Dermochelys coriacea) at its nesting site, Shell Beach, Guyana, South America
Researchers measuring a female Leatherback turtle (Dermochelys coriacea) at its nest site, Shell Beach, Guyana, South America
Geologists taking mineral samples on Gran Cratere (The Great Crater), Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
Geologists taking mineral samples on Gran Cratere (The Great Crater), Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
Captive Galapagos giant tortoise (Geochelone elephantopus), Charles Darwin Research Station, Galapagos Islands, UNESCO World Heritge Site, Ecuador, South America
The Palm House at Royal Botanic Gardens, UNESCO World Heritage Site, Kew, London, England, United Kingdom, Europe
Templo Mayor, archaeological site of Aztec capital city of Tenochtitlan, Centro Historico, UNESCO World Heritage Site, Mexico City, Mexico, North America
Bas Relief of Boat, Tomb of Seti I, KV17, Valley of the Kings, Ancient Thebes, UNESCO World Heritage Site, Luxor, Egypt, North Africa, Africa
The Mafra Palace Library, one of Europe's most important libraries, located in Mafra National Palace, UNESCO World Heritage Site, Lisbon region, Portugal, Europe
Adult great blue heron (Ardea herodias cognata) hunting for green sea turtle hatchlings in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Galapagos penguin (Spheniscus mendiculus) feeding underwater on small baitfish in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
The Lindblad Expeditions ship National Geographic Sea Bird operating in Glacier Bay National Park, UNESCO World Heritage Site, Southeast Alaska, United States of America, North America
Weddell Seal (Leptonychotes weddellii), hauled out on ice at Half Moon Island, Antarctica, Southern Ocean, Polar Regions
Ice crystals, Science Center, Ilulissat Icefjord, UNESCO World Heritage Site, Western Greenland, Denmark, Polar Regions
Floating icebergs, Ilulissat Icefjord, UNESCO World Heritage Site, Western Greenland, Denmark, Polar Regions
Aerial of the Ilulissat Icefjord, UNESCO World Heritage Site, Western Greenland, Denmark, Polar Regions
Belcher glacier, Devon island, Nunavut, Canadian Arctic, Canada, North America
Wreck of a C-53 Skytrooper, which went down on February 26, 1942 in Vansittart Bay, Kimberley, Western Australia, Australia, Pacific
Pinnacle Rock on Bartolome Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Green Sea Turtle (Chelonia mydas) nesting site at night on Long Beach on Ascension Island, Tropical Atlantic Ocean, South Atlantic Ocean
The endemic Galapagos marine iguana (Amblyrhynchus cristatus) on Espanola Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Library at Monasterio y Museo de la Recoleta, UNESCO World Heritage Site, Arequipa, Arequipa Province, Arequipa Region, Peru, South America
Santa Laura Salpeter mine, UNESCO World Heritage Site, Atacama desert, Chile, South America
Stepped Pyramid of Djoser, the first pyramid, complex of Saqqara, UNESCO World Heritage Site, Egypt, North Africa, Africa
Galapagos Giant Tortoise (Chelonoidis chathamensis), can live for over 100 years, on San Cristobal island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Captive Galapagos giant tortoise (Geochelone elephantopus) at the Charles Darwin Research Station, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Captive Galapagos giant tortoise (Geochelone elephantopus) at the Charles Darwin Research Station, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Guest from the Lindblad Expedition ship National Geographic Endeavour in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Guests from the Lindblad Expedition ship National Geographic Endeavour in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
A small pod of killer whales (Orcinus orca) off the west coast of Isabela Island in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Baleen whale skeleton, most likely a young Bryde's whale, on lava flow in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Baleen whale skeleton, most likely a young Bryde's whale, on lava flow in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Galapagos sea lions (Zalophus wollebaeki) hauled out on the beach in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
The National Library of Malta in Valletta, Malta
Adult gentoo penguin (Pygoscelis papua) with minutes-old newly hatched chick at Gold Harbor on South Georgia
Bacteria bomb made of ceramic used by the Japanese Imperial army Unit 731 during WWII, Quzhou City, Zhejiang Province, China
The Great Pyramid Archaeological Site, Cholula, Puebla State, Mexico
Museum of the Great Pyramid, interior, Cholula, Puebla State, Mexico
The Great Pyramid Archaeological Site, Cholula, Puebla State, Mexico
Stela at Monte Alban Archaeological Site, Oaxaca State, Mexico
View of artifacts in the interior of the Grand Egyptian Museum (GEM), Cairo, Egypt, Africa
View of artifacts in the interior of the Grand Egyptian Museum (GEM), Cairo, Egypt, Africa
View of The Hanging Obelisk in the Grand Egyptian Museum (GEM), Cairo, Egypt, Africa
The Mafra Palace Library, one of Europe's most important libraries, located in Mafra National Palace, UNESCO World Heritage Site, Lisbon region, Portugal, Europe
Neolithic archaeological site of Karahan Tepe, circular stone structure with T Shape pillars, Sanliurfa, Turkey, Asia Minor, Asia
Neolithic archaeological site of Karahan Tepe, circular stone structure with T Shape pillars, Sanliurfa, Turkey, Asia Minor, Asia
Visitor Center, Dadan Archaeological site, ancient capital of Dadan and Lihyan kingdoms over 2000 years ago. AlUla, Medina Province, Saudi Arabia
Jabal Ikmah Site, world's largest concentration of well-preserved Dadanitic inscriptions, 1st millennium BCE, AlUla, Medina Province, Saudi Arabia
Jabal Ikmah Site, world's largest concentration of well-preserved Dadanitic inscriptions, 1st millennium BCE, AlUla, Medina Province, Saudi Arabia
Archaeological site of Dadan, ancient capital of the Dadan And Lihyan kingdoms more than 2000 years ago. AlUla, Medina Province, Saudi Arabia
People using binoculars to see rock cut tombs in cliffs at Dadan, ancient capital of Dadan And Lihyan kingdoms, AlUla, Medina Province, Saudi Arabia
View over Main Plaza towards Great Acropolis and Temple of Five Floors, Edzna Archaeological Site, Campeche State, Mexico
Edzna Archaeological Site, Campeche State, Mexico
Great Acropolis, Edzna Archaeological Site, Campeche State, Mexico
Ballcourt, elevated view, Edzna Archaeological Site, Campeche State, Mexico
Edzna Archaeological Site, Campeche State, Mexico
Great Acropolis, Edzna Archaeological Site, Campeche State, Mexico
Great Acropolis, Edzna Archaeological Site, Campeche State, Mexico
Structure I, Xpuhil Archaeological Site, Xpujil, Campeche State, Mexico
Structure I, Xpuhil Archaeological Site, Xpujil, Campeche State, Mexico
Becan Archaeological Site, Campeche State, Mexico
Structure I, Xpuhil Archaeological Site, Xpujil, Campeche State, Mexico
Structure IX, Becan Archaeological Site, Campeche State, Mexico
Becan Archaeological Site, Campeche State, Mexico
Structure X, Becan Archaeological Site, Campeche State, Mexico
Structure VIII, Becan Archaeological Site, Campeche State, Mexico
Structure II, Hormiguero Archaeological Site, Campeche State, Mexico
View towards Structure I at sunrise, Calakmul Archaeological Site, Campeche State, Mexico
Structure II, Calakmul Archaeological Site, Campeche State, Mexico
Structure I, Calakmul Archaeological Site, Campeche State, Mexico
Structure II, Calakmul Archaeological Site, Campeche State, Mexico
Structure II, Calakmul Archaeological Site, Campeche State, Mexico
Structure II, Calakmul Archaeological Site, Campeche State, Mexico
Structure II, Calakmul Archaeological Site, Campeche State, Mexico
People climbing Structure II, Calakmul Archaeological Site, Campeche State, Mexico
Stelae at the bottom of Structure II, Calakmul Archaeological Site, Campeche State, Mexico
Stela at the Structure I, detailed view, Calakmul Archaeological Site, Campeche State, Mexico
Structure I, Calakmul Archaeological Site, Campeche State, Mexico
Balamku Archaeological Site, Campeche State, Mexico
Balamku Archaeological Site, Campeche State, Mexico
View towards Structure II from Structure I, Calakmul Archaeological Site, Campeche State, Mexico
Balamku Archaeological Site, Campeche State, Mexico
Balamku Archaeological Site, Campeche State, Mexico
Balamku Archaeological Site, Campeche State, Mexico
An old relic from the Johnson Canyon Railroad, Kaibab National Forest of Arizona, USA
Ancient symbols and rock carvings on a sandstone rock cliff in the Sharaan Nature Reserve, AlUla, Medina Province, Saudi Arabia
Kinich Kak Moo Mayan Pyramid, Izamal, Yucatan State, Mexico
Quadrangle of the Nuns, detailed view, Uxmal, Yucatan State, Mexico
People climbing the Kinich Kak Moo Mayan Pyramid, Izamal, Yucatan State, Mexico
The Tzompantli, Platform of the Skulls, Chichen Itza, Yucatan State, Mexico
First digital physical reconstruction of a Nabataean woman, Hinat, 2nd to 1st centuries BCE, from 3D skull scan, Hegra, Medina Province, Saudi Arabia
Preserved murals within the archaeological ruins of Pompeii, UNESCO, Campania, Italy
The Antiquarian museum, part of the archaeological ruins of Pompeii, UNESCO, Campania, Italy
The archaeological ruins of Pompeii, UNESCO, Campania, Italy
The archaeological ruins of Pompeii, UNESCO, Campania, Italy
Astronomical instruments of Jantar Mantar, UNESCO, Jaipur, Rajasthan, India
Astronomical instruments of Jantar Mantar, UNESCO, Jaipur, Rajasthan, India
The High Temple at the Mesoamerican archaeological site of Lamanai (Submerged Crocodile), Belize
The High Temple at the Mesoamerican archaeological site of Lamanai (Submerged Crocodile), Belize