Northern pintail (Anas acuta) drake, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America

Greater sandhill cranes (Grus canadensis tabida) gray in color, and lesser snow geese (Chen caerulescens caerulescens) white in color, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America

Grand Capucin and Refuge des Cosmiques (Cosmiques Hut), Chamonix, Rhone Alpes, Haute Savoie, French Alps, France, Europe

Cave entrance, Mount Autana (Cerro Autana), Tepuis, Amazonas territory, Venezuela, South America

Oso rock (the bear), Auyantepui summit (Devil's Mountain), Canaima National Park, UNESCO World Heritage Site, Estado Bolivar, Venezuela, South America

Aerial image of skeleton forest, damaged by forest fire, on La Gran Sabana, Canaima National Park, UNESCO World Heritage Site, Bolivar State, Venezuela, South America

Aerial image of River Kukenan looking north to tepuis of Mount Kukenaam (Kukenan) (Cuguenan) and Mount Roraima, Gran Sababa, Venezuela, South America

Aerial image of city including Durham Castle, a Medieval castle, Norman Cathedral, and the River Wear, Durham, England, United Kingdom, Europe

Greater sandhill cranes (Grus canadensis tabida) at sunrise, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America

Wild mustang (banker horse) (Equus ferus caballus) in Currituck National Wildlife Refuge, Corolla, Outer Banks, North Carolina, United States of America, North America

Sunset at Ding Darling Wildlife Refuge on Sanibel island, Florida, United States of America, North America

Aerial image of Brighton Pier (Palace Pier), Brighton, Sussex, England, United Kingdom, Europe

Cerro Autana, Kunhardtia rhodantha (Rapataceae), Amazonas territory, Venezuela, South America

Aerial image of China Clay (Kaolin) Quarries, St. Austell, Cornwall, England, United Kingdom, Europe

Aerial image of the Long Man of Wilmington, Wilmington, South Downs, East Sussex, England, United Kingdom, Europe

La Miette, The Crumb, Jacques Prévert's refuge, Saint-Paul-de-Vence, Provence-Alpes-Côte d'Azur, France

Group of Great white egrets (Ardea alba) and Roseate Spoonbills (Platalea ajaja) fishing, J.N. Ding Darling Wildlife Refuge, Florida, United States of America, North America

Flamingos, Celestun National Wildlife Refuge, Yucatan, Mexico, North America

Aerial image of Leeds Castle and moat, a medieval castle, southeast of Maidstone, Kent, England, United Kingdom, Europe

Aerial image of the confluence of Paikwa River with Kako River, Upper Mazaruni District, Guyana, South America

Brocchinia tatei (Bromeliaceae), Mount Roraima summit, Venezuela, South America

Karowrieng rock paintings, Chi-Chi Gorge, Upper Mazaruni District, Guyana, South America

Two sandhill crane (Grus canadensis) in flight, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America

Wild mustangs (banker horses) (Equus ferus caballus) in Currituck National Wildlife Refuge, Corolla, Outer Banks, North Carolina, United States of America, North America

Fosso Sinkhole on summit of Mount Roraima (Cerro Roraima), Tepuis, Venezuela, South America

Aerial image of tepuis showing southeast corner and Towashing Pinnacle (Tewasen), Mount Roraima, Venezuela, South America

Rock formation on the summit of Mount Kukenaam (Kukenan) (Cuguenan), Estado Bolivar, Venezuela, South America

Ring-tailed Lemurs (Lemur catta), all white baby male (Sapphire) albino lemur resting with mother on tree, Berenty, Southern Madagascar, Africa

Karowrieng rock paintings, Chi-Chi Gorge, Upper Mazaruni District, Guyana, South America

Aerial image of tepuis showing northern prow in the Guyanese sector of Mount Roraima (Cerro Roraima), Venezuela, South America

Aerial image of tepuis showing Mount Auyantepui (Auyantepuy) (Devil's Mountain), Venezuela, South America

Didiereaceae plant (Alluaudia sp.), Spiny Forest, Hazofotsy, Southern Madagascar, Africa

Aerial image of the London Eye (Millennium Wheel), South Bank of the River Thames, London, England, United Kingdom, Europe

Aerial image of chalk cliffs and lighthouse, Beachy Head, near Eastbourne, East Sussex, England, United Kingdom, Europe

Greater sandhill crane (Grus canadensis tabida), Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America

Lesser snow geese (Chen caerulescens caerulescens), Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America

Wild mustangs (banker horses) (Equus ferus caballus) in Currituck National Wildlife Refuge, Corolla, Outer Banks, North Carolina, United States of America, North America

Rocks in the mist on the summit of Mount Kukenaam (Kukenan) (Cuguenan), Estado Bolivar, Venezuela, South America

Aerial image of the River Tone in flood, Meare Green, near Taunton, Somerset, England, United Kingdom, Europe

Dendrobatid poison dart Frog (Dendrobates leucomelas), Venezuela, South America

Aerial image of tepuis showing Mount Roraima (Cerro Roraima), Venezuela, South America

Aerial view of Framlingham Castle, Framlingham, Suffolk, England, United Kingdom, Europe

Aerial image of tepuis showing the summit of Mount Roraima (Cerro Roraima) with Lake Gladys, Venezuela, South America

Auyantepui (Auyantepuy) (Devil's Mountain) summit, Blackwater River (Golden River), Canaima National Park, UNESCO World Heritage Site, Venezuela, South America

Trekkers and Bergamo alpine refuge, Rosengarten mountain range, Dolomites, South Tyrol, Bolzano province, Italy, Europe

Roseate Spoonbill (Platalea ajaja) in flight, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, United States of America, North America

Aerial image of Haytor (Hay Tor) and Haytor Rocks, granite rock outcrop, Haytor Vale, Dartmoor, Devon, England, United Kingdom, Europe

Aerial image of the Tower of London, UNESCO World Heritage Site, London, England, United Kingdom, Europe

Aerial image of Housesteads Roman Fort of Vercovicium, an auxiliary fort on Hadrian's Wall, UNESCO World Heritage Site, Northumberland, England, United Kingdom, Europe

Hagenia (Hagenia abyssinica) Forest, Mountain Gorilla Habitat, Virunga Volcanoes, Rwanda, Africa

Aerial image of Salisbury Cathedral and city in snow, Salisbury, Wiltshire, England, United Kingdom, Europe

Aerial image of Angel Falls and Mount Auyantepui (Auyantepuy) (Devil's Mountain), Tepuis, Venezuela, South America

Golden-crowned Sifaka (Propithecus tattersalli), an endangered species, sunbathing on ground, Daraina, Northern Madagascar, Africa

Southwestern cliff from ascent ledge, Mount Roraima (Cerro Roraima), Tepuis, Estado Bolivar, Venezuela, South America

Greater sandhill crane (Grus canadensis tabida), Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America

Hawaiian goose (nene) (Branta sandvicensis), at Historic Kilauea Lighthouse, Kilauea Point National Wildlife Refuge, Kauai, Hawaii, United States of America, Pacific

Hikers proceed towards Refuge of Lac de Cheserys with the sun just risen, Chamonix, Haute Savoie, French Alps, France, Europe

Southwestern cliff from ascent ledge, Mount Roraima (Cerro Roraima), Tepuis, Estado Bolivar, Venezuela, South America

Aerial image of tepuis showing Mount Auyantepui (Auyantepuy) (Devil's Mountain), Venezuela, South America

Aerial image of city and cathedral, Canterbury, Kent, England, United Kingdom, Europe

Tropical rain forest at dawn, Raleighvallen Voltzberg National Park, Suriname, South America

Blackback male Mountain Gorilla (Gorilla g. beringei), Virunga Volcanoes, Rwanda, Africa

Aerial image of Lamb Down Military Badge, the badge of the Australian Commonwealth Military Forces, cut on a steep slope by the A36, Lamb Down, Wiltshire, England, United Kingdom, Europe

Black frog (Oreophrynella quelchii), Roraima summit, Venezuela, South America

Aerial image of Arundel Castle, a restored medieval castle, South Downs, Arundel, West Sussex, England, United Kingdom, Europe

Striped skunk (Mephitis mephitis), Bear River Migratory Bird Refuge, Utah, United States of America, North America

Eroded granite near Mount Roraima, Gran Sabana, Estado Bolivar, Venezuela, South America

Auyantepui (Auyantepuy) (Devil's Mountain) from Carrao River, Canaima National Park, UNESCO World Heritage Site, Venezuela, South America

Aerial image of the Cerne Abbas Giant, Cerne Abbas, north of Dorchester, Dorset, England, United Kingdom, Europe

Auyantepui (Auyantepuy) (Devil's Mountain) summit, Blackwater River (Golden River), Canaima National Park, UNESCO World Heritage Site, Venezuela, South America

Aerial image of Lord's Cricket Ground, St. John's Wood, London, England, United Kingdom, Europe

Aerial image of Tramentepui, Eastern chain of tepuis, Estado Bolivar, Venezuela, South America

Greater sandhill cranes (Grus canadensis tabida) at sunset, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America

Male yellow-headed blackbird (Xanthocephalus xanthocephalus), Bear River Migratory Bird Refuge, Utah, United States of America, North America

Great white egret (Ardea alba) in flight, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, United States of America, North America

Great blue heron (Ardea herodias) looking for food, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, United States of America, North America

Stegolepis guianensis, summit of Mount Roraima, Venezuela, South America

Ascent ledge on southwest cliff, Mount Roraima (Cerro Roraima), Tepuis, Estado Bolivar, Venezuela, South America

Ring-tailed Lemur (Lemur catta) sunbathing on tamarind tree, Berenty, Southern Madagascar, Africa

Ring-tailed Lemur (Lemur catta) sunbathing on ground, Berenty, Southern Madagascar, Africa

Kamarang River, Upper Mazaruni District, Guyana, South America

Aerial image of Dungeness Nuclear Power Station, Dungeness headland, Kent, England, United Kingdom, Europe

Aerial image of valley north of Thirlmere, Lake District National Park, Cumbria, England, United Kingdom, Europe

Aerial image of salt marsh at Tibby Head, Blakeney Point, Norfolk, England, United Kingdom, Europe

Aerial image of Castlerigg Stone Circle, a prehistoric monument in snow, near Keswick, Lake District National Park, Cumbria, England, United Kingdom, Europe

Auyantepui (Auyantepuy) (Devil's Mountain) summit, and Blackwater River, Canaima National Park, UNESCO World Heritage Site, Venezuela, South America

Eroded sedimentary sandstone near the Great Crack, Summit of Mount Kukenaam (Kukenan) (Cuguenan), Estado Bolivar, Venezuela, South America

Aerial image of Ayangaik mountain, Upper Mazaruni District, Guyana, South America

Ascent point showing the Chessman, Mount Kukenaam (Kukenan) (Cuguenan), Estado Bolivar, Venezuela, South America

Raccoon (Procyon lotor) scratching himself, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, United States of America, North America

Wild mustangs (banker horses) (Equus ferus caballus) in Currituck National Wildlife Refuge, Corolla, Outer Banks, North Carolina, United States of America, North America

Santiago pilgrims' guest house, St.-Jean-Pied-de-Port, Pyrenees Atlantique, France, Europe

Aerial image of the burnt-out West Pier, Brighton, Sussex, England, United Kingdom, Europe

Aerial image of Rock Stacks, Otter Sandstone of Triassic age, Ladram Bay, Devon, England, United Kingdom, Europe

Hagenia (Hagenia abyssinica) Forest, Mountain Gorilla Habitat, Virunga Volcanoes, Rwanda, Africa

Orectanthe sceptrum, summit of Mount Roraima, Venezuela, South America

Aerial view of Castle Rising, a medieval castle, Norfolk, England, United Kingdom, Europe

Ring-tailed Lemur (Lemur catta) on camera, Berenty, Southern Madagascar, Africa

Golden-crowned Sifaka (Propithecus tattersalli), an endangered species, on tree, Daraina, Northern Madagascar, Africa

Two female Mountain Gorillas (Gorilla g. beringei) resting, Virunga Volcanoes, Rwanda, Africa