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Geological Devil's Bridge, a natural arch carved by the sea from soft and hard limestone ledges of the Antigua formation, Antigua, Leeward Islands, West Indies, Caribbean, Central America
The Giants Causeway, UNESCO World Heritage Site, County Antrim, Ulster, Northern Ireland, United Kingdom, Europe
Steam rising from side of Mount Tongariro, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Multicoloured strata hill in the Painted Hills unit in the John Day Fossil Beds National Monument, Oregon, United States of America, North America
Sunrise at Font's Point, Anza-Borrego Desert State Park, California, United States of America, North America
Milky Way and person under Delicate Arch, Arches National Park, Moab, Grand County, Utah, United States of America, North America
Furnas Valley, a site of bubbling hot springs and fumaroles on the Azorean capital island of Sao Miguel, Azores, Portugal, Europe
Gran Cratere (The Great Crater) and Aeolian Islands view, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Caleta Negra (Black Bay) a popular boat trip and walk with its distinctive sedimentary and lava strata, Ajuy, Fuerteventura, Spain, Atlantic, Europe
The Caldera de Gairia volcanic cone looms over this town in the central south, Tiscamanita, Fuerteventura, Canary Islands, Spain, Europe
Multicoloured strata in the Painted Hills unit in the John Day Fossil Beds National Monument, Oregon, United States of America, North America
Gran Cratere (The Large Crater), Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Marine fossils on rocks at the geological area Orti della Regina, Brenta Dolomites, Madonna di Campiglio, Trentino, Italy, Europe
Furnas Valley, a site of bubbling hot springs and fumaroles on the Azorean capital island of Sao Miguel, Azores, Portugal, Europe
Gnalloden reflected in meltwater pond at Hornsund, Spitsbergen, Svalbard, Arctic, Norway, Scandinavia, Europe
La Pared surf beach and the Parque Natural Jandia mountains beyond on the southwest coast, La Pared, Fuerteventura, Canary Islands, Spain, Atlantic, Europe
The colourful hills of the Painted Hills unit in the John Day Fossil Beds National Monument, Oregon, United States of America, North America
Multicoloured strata hill in the Painted Hills unit in the John Day Fossil Beds National Monument, Oregon, United States of America, North America
Geologists taking minerals samples on Gran Cratere (The Great Crater), Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
A view of the island of Deserta Grande, in the Ilhas Desertas, near the city of Funchal, Madeira, Portugal, Atlantic, Europe
Svartifoss waterfall in the Skaftafell National Park, Iceland, Polar Regions
View from Calderon Honda crater of lava rock ruins and volcanic cones of the north, Lajares, Fuerteventura, Canary Islands, Spain, Europe
View over the Lewis River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Green Bridge of Wales, Pembrokeshire Coast, Wales, United Kingdom, Europe
The Giants Causeway, UNESCO World Heritage Site, County Antrim, Ulster, Northern Ireland, United Kingdom, Europe
Sulphur and fumarole smoke on volcano Gran crater, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Dades Gorges scenery, Morocco, North Africa, Africa
Rio Pinturas Canyon, Santa Cruz Province, Patagonia, Argentina, South America
Stone wall of the Window section, Arches National Park, Utah, United States of America, North America
Chilean Flamingo (Phoenicopterus chilensis), Laguna Chaxa, Salar de Atacama, Atacama Desert, Chile, South America
Sennen Cove, Whitesand Bay, Cornwall, England, United Kingdom, Europe
Delicate Arch with sun and clouds at golden hour, Arches National Park, Moab, Grand County, Utah, United States of America, North America
Multicoloured strata in the Painted Hills unit in the John Day Fossil Beds National Monument, Oregon, United States of America, North America
The Giants Causeway, UNESCO World Heritage Site, County Antrim, Ulster, Northern Ireland, United Kingdom, Europe
Multicoloured strata hill in the Painted Hills unit in the John Day Fossil Beds National Monument, Oregon, United States of America, North America
View over the Sawtooth National Forest north of Sun Valley, Idaho, United States of America, North America
Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Petroglyphs, Petrified Forest National Park, Arizona, United States of America, North America
Petrified Forest, fossilised tree trunks, Damaraland, Kunene Region, Namibia, Africa
Milky Way above Delicate Arch, Arches National Park, Moab, Grand County, Utah, United States of America, North America
Volcanic rock headland and sandy beach south of this village on the north west coast, El Cotillo, Fuerteventura, Canary Islands, Spain, Atlantic, Europe
The colourful hills of the Painted Hills unit in the John Day Fossil Beds National Monument, Oregon, United States of America, North America
Colourful Emerald Pool, Black Sand Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Jackson Lake in the Teton range in the Grand Teton National Park, Wyoming, United States of America, North America
Late afternoon light on the Crater Lake of the Crater Lake National Park, Oregon, United States of America, North America
Sulphur and fumarole smoke on volcano Gran crater, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Marble Cathedral, Santuario de la Naturaleza Capillas de Marmol, General Carrera Lake, Aysen Region, Patagonia, Chile, South America
Panoramic of The Seven Colored Earth Geopark, volcanic geological formations, Chamarel, Black River, Mauritius, Indian Ocean, Africa
Redrock sandstone formations in the Kodachrome Basin State Park, Utah, United States of America, North America
Delicate Arch at golden hour, Arches National Park, Moab, Grand County, Utah, United States of America, North America
Badlands at sunrise from Font's Point, Anza-Borrego Desert State Park, California, United States of America, North America
View over the cliffs of the Zion National Park and the Angel's Landing trail, Zion National Park, Utah, United States of America, North America
Hand pictographs, Honanki Heritage Site, Coconino National Forest, Arizona, United States of America, North America
Merry Maidens stone circle, Cornwall, England, United Kingdom, Europe
Unconformity of older Jurassic sediments and Pliocene limestone plus later lava on top at Caleta Negra, Ajuy, Fuerteventura, Spain, Atlantic, Europe
View over the Sawtooth National Forest north of Sun Valley, Idaho, United States of America, North America
The Cliff Palace Indian dwelling, Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America
Colorado River, Canyonlands National Park, Utah, United States of America, North America
Multicoloured strata in the Painted Hills unit in the John Day Fossil Beds National Monument, Oregon, United States of America, North America
View of Gran Cratere and Finicudi Island, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Cathedral Rock reflected in Oak Creek, Crescent Moon Picnic Area, Coconino National Forest, Arizona, United States of America, North America
Machuca Village, Atacama Desert, Chile, South America
Badlands, Petrified Forest National Park, Arizona, United States of America, North America
Opalescent pool in the Black Sand Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
View over the Sawtooth National Forest north of Sun Valley, Idaho, United States of America, North America
The Giants Causeway, UNESCO World Heritage Site, County Antrim, Ulster, Northern Ireland, United Kingdom, Europe
Sulphur and fumaroles smoke on volcano Gran Cratere, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Geological formations shaped as sand dunes, The Seven Colored Earth Geopark, Chamarel, Black River, Mauritius, Indian Ocean, Africa
Hot steam, Craters of the Moon Thermal Area, Taupo, North Island, New Zealand, Pacific
Multicoloured strata hill in the Painted Hills unit in the John Day Fossil Beds National Monument, Oregon, United States of America, North America
Volcano, indonesia. East java. Mount bromo volvanic national park
View over the cliffs of the Zion National Park and the Angel's Landing path, Zion National Park, Utah, United States of America, North America
The Giants Causeway, UNESCO World Heritage Site, County Antrim, Ulster, Northern Ireland, United Kingdom, Europe
Rainbow across the Dades Gorges, Morocco, North Africa, Africa
Namib desert, Namibia, Africa
Crested Pool, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Arches National Park, Moab, Grand County, Utah, United States of America, North America
Peoples at Delicate Arch at golden hour, Arches National Park, Moab, Grand County, Utah, United States of America, North America
Woman rapelling down a giant arch, canyoneering, Moab, Utah, United States of America, North America
View over the Sawtooth National Forest north of Sun Valley, Idaho, United States of America, North America
South Window Arch seen through Turret Arch, Arches National Park, Utah, United States of America, North America
The Cliff Palace Indian dwelling, Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America
The Giant's Causeway rises out of the Atlantic late at night as the last light of the sun disappears below the horizon, County Antrim, Northern Ireland, United Kingdom, Europe
A view of the island of Deserta Grande, in the Ilhas Desertas, near the city of Funchal, Madeira, Portugal, Atlantic, Europe
Badlands, Petrified Forest National Park, Arizona, United States of America, North America
A view of the island of La Gomera, the second smallest island in the Canary Islands, Spain, Atlantic, Europe
Devil's Bridge, geological limestone rock formation and arch, Willikies, Antigua, Antigua and Barbdua, Leeward Islands, West Indies, Caribbean, Central America
View south over Charco de Guelde bay from the cliff tops at this northwest village, El Cotillo, Fuerteventura, Canary Islands, Spain, Atlantic, Europe
Redfish Lake in a valley north of Sun Valley, Sawtooth National Forest, Idaho, United States of America, North America
The caldera of the Crater Lake National Park, Oregon, United States of America, North America
View over the Colorado River from the Slickrock trail, Moab, Utah, United States of America, North America
Dades Gorges scenery, Morocco, North Africa, Africa
Red Crater along the Tongariro Alpine Crossing, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
The huge caldera of the Crater Lake National Park, Oregon, United States of America, North America
Sandy beach on Redfish Lake in a valley north of Sun Valley, Sawtooth National Forest, Idaho, United States of America, North America
Rock formation on the way to Delicate Arch, Arches National Park, Moab, Grand County, Utah, United States of America, North America
A view of the island of La Gomera, the second smallest island in the Canary Islands, Spain, Atlantic, Europe
Flute player pictograph, Honanki Heritage Site, Coconino National Forest, Arizona, United States of America, North America
Chilean Flamingo (Phoenicopterus chilensis), Laguna Chaxa, Salar de Atacama, Atacama Desert, Chile, South America
Laguna Chaxa, Salar de Atacama, Atacama Desert, Chile, South America