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Geologists taking mineral samples on Gran Cratere (The Great Crater), Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
The Palm House at Royal Botanic Gardens, UNESCO World Heritage Site, Kew, London, England, United Kingdom, Europe
The Roman period Odeon building, Apollonia Archaeological Park, Pojan, Albania, Europe
Researchers measuring a female Leatherback turtle (Dermochelys coriacea) at its nest site, Shell Beach, Guyana, South America
Templo Mayor, archaeological site of Aztec capital city of Tenochtitlan, Centro Historico, UNESCO World Heritage Site, Mexico City, Mexico, North America
Applying a tag to a Leatherback turtle (Dermochelys coriacea) at its nesting 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
Captive Galapagos giant tortoise (Geochelone elephantopus), Charles Darwin Research Station, Galapagos Islands, UNESCO World Heritge Site, Ecuador, South America
Hieroglyphics, Paintings and Relief, Tomb of Nefertari, QV66, Valley of the Queens, Ancient Thebes, UNESCO World Heritage Site, Luxor, Egypt, North Africa, Africa
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
Conservation work at the Great Hypostyle Hall in the Precinct of Amon-Re, Karnak Temple Complex, UNESCO World Heritage Site, Luxor, Egypt, North Africa, Africa
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
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
Captive Galapagos giant tortoise (Geochelone elephantopus) at the Charles Darwin Research Station, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Wild Galapagos giant tortoise (Geochelone elephantopus) at Urbina Bay, Isabela Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Schooling king angelfish (Holacanthus passer), underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Lava lizard (Microlophus spp) in the Galapagos Islands Archipelago, UNESCO World Heritage Site, Ecuador, South America
Lava lizard (Microlophus spp) in the Galapagos Islands Archipelago, UNESCO World Heritage Site, Ecuador, South America
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
Ice crystals, Science Center, Ilulissat Icefjord, UNESCO World Heritage Site, Western Greenland, Denmark, Polar Regions
Ice crystals, Science Center, Ilulissat Icefjord, UNESCO World Heritage Site, Western Greenland, Denmark, Polar Regions
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
Library at Monasterio y Museo de la Recoleta, UNESCO World Heritage Site, Arequipa, Arequipa Province, Arequipa Region, Peru, South America
Monument, Chinchorro Mummies, UNESCO World Heritage Site, Camarones Valley, northern Atacama desert, Chile, South America
Chinchorro Mummies site, UNESCO World Heritage Site, Camarones Valley, northern Atacama desert, Chile, South America
Galapagos Giant Tortoise (Chelonoidis chathamensis), can live for over 100 years, on San Cristobal island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
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
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
Ancient symbols and rock carvings on a sandstone rock cliff in the Sharaan Nature Reserve, AlUla, Medina Province, Saudi Arabia
First digital physical reconstruction of a Nabataean woman, Hinat, 2nd to 1st centuries BCE, from 3D skull scan, Hegra, Medina Province, Saudi Arabia
The archaeological ruins of Pompeii, UNESCO, Campania, Italy
The archaeological ruins of Pompeii, UNESCO, Campania, Italy
Magellanic penguin (Spheniscus magellanicus) at a breeding and molting site in Estancia San Lorenzo, Argentina
Astronomical instruments of Jantar Mantar, UNESCO, Jaipur, Rajasthan, India
Astronomical instruments of Jantar Mantar, UNESCO, Jaipur, Rajasthan, India
The Royal Complex at the Mesoamerican archaeological site of Lamanai (Submerged Crocodile), Belize
African forest elephant (Loxodonta cyclotis), Dzanga Bai, Dzanga Sangha National Park, UNESCO, Central African Republic
CERN, Wandering the Immeasurable, steel structure, Globe of Science and Innovation in background, Geneva, Switzerland
Skara Brae, a Neolithic village constructed in 3100 BC, UNESCO, Orkney Islands, Scotland, United Kingdom
Burial Ground for Slaves and Free Blacks up to 1854, containing 180 graves, St. Peter's Churchyard, St. George, Bermuda
Burial Ground for Slaves and Free Blacks up to 1854, containing 180 graves, St. Peter's Churchyard, St. George, Bermuda
Brunnich's guillemot (Uria lomvia) breeding and nesting site at Cape Fanshawe in the Svalbard Archipelago, Norway, Arctic, Europe
Lava lizard (Microlophus spp) in the Galapagos Islands Archipelago, UNESCO World Heritage Site, Ecuador, South America
Spotted eagle rays (Aetobatus narinari) underwater at Leon Dormido Island off San Cristobal Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Juvenile Galapagos hawk (Buteo galapagoensis) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Aerial of the Ilulissat Icefjord, UNESCO World Heritage Site, Western Greenland, Denmark, Polar Regions
Green Sea Turtle (Chelonia mydas) nesting site at night on Long Beach on Ascension Island, Tropical Atlantic Ocean, South Atlantic Ocean
Elevated view of Cusco, UNESCO World Heritage Site, Cusco Region, Peru, South America
The endemic Galapagos marine iguana (Amblyrhynchus cristatus) on Espanola Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Stepped Pyramid of Djoser, the first pyramid, complex of Saqqara, UNESCO World Heritage Site, Egypt, North Africa, Africa
Captive Galapagos giant tortoise (Geochelone elephantopus) at the Charles Darwin Research Station, Galapagos, UNESCO World Heritage Site, Ecuador, South America
The endemic lava cactus (Brachycereus spp) cactus growing 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
Wandering albatross (Diomedea exulans) chick at breeding colony on Prion Island, Bay of Isles, South Georgia
Views King Edward Point near the whaling station at Grytviken on South Georgia in the South Atlantic
Views of the old whaling station at Grytviken on South Georgia in the South Atlantic
Petrified sand dunes, White Canyon State Park, Red Cliffs Desert Reserve near St. George, Utah, United States of America
Adult gentoo penguin (Pygoscelis papua) with minutes-old newly hatched chick at Gold Harbor on South Georgia
Jabal Ikmah Site, world's largest concentration of well-preserved Dadanitic inscriptions, 1st millennium BCE, 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
Preserved murals within the archaeological ruins of Pompeii, UNESCO, Campania, Italy
Wall murals in the archaeological ruins of Pompeii, UNESCO, Campania, Italy
The Antiquarian museum, part of the archaeological ruins of Pompeii, UNESCO, Campania, Italy
The High Temple at the Mesoamerican archaeological site of Lamanai (Submerged Crocodile), Belize
The Royal Complex at the Mesoamerican archaeological site of Lamanai (Submerged Crocodile), Belize
The Temple Stela 9 complex at the Mesoamerican archaeological site of Lamanai (Submerged Crocodile), Belize
The temple Stela 9 complex at the Mesoamerican archaeological site of Lamanai (Submerged Crocodile), Belize
Rock art on a rock formation in Tigui, Tibesti Mountains, Chad
Adult black-browed albatross (Thalassarche melanophrys), in flight returning to nesting site on West Point Island, Falklands, South America
Lava lizard (Microlophus spp) in the Galapagos Islands Archipelago, UNESCO World Heritage Site, Ecuador, South America
Adult great blue heron (Ardea herodias cognata) feeding on green sea turtle hatchlings, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Adult Swallow-tailed gull (Creagrus furcatus) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Aerial of Axel Heiberg island, Nunavut, Canadian Arctic, Canada, North America
Pinnacle Rock on Bartolome Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Tourists at 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
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
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
Blue-footed booby (Sula nebouxii) showing blue feet 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
Theodore Monod African Art Museum at IFAN (Institut Fondamental d'Afrique Noire), Soweto Square, Dakar, Senegal, West Africa
Neolithic archaeological site of Karahan Tepe, circular stone structure with T Shape pillars, Sanliurfa, Turkey, Asia Minor, Asia
Archaeological site of Dadan, ancient capital of the Dadan And Lihyan kingdoms more than 2000 years ago. AlUla, Medina Province, Saudi Arabia