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Coffee plantations on the slopes of the Poas Volcano, near San Jose, Costa Rica
Crested Pool, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Avacha volcano, lava plug formed in crater in 1991, Koryaksky volcano beyond, Kamchatka, East Siberia, Russia
Mount Rainier, volcanic peak, and Emmons Glacier from summit icefield, Cascade Mountains, Washington State, United States of America (U.S.A.), North America
Teide National Park, Mount Teide (Pico de Teide), Tenerife, Canary Islands, Spain
Hverfell (Hverfjall) ash crater in north of the country, Myvatyn (Myvatn) Nature Reserve, Iceland
Arenal Volcano, Arenal, Costa Rica
Black volcanic sand beach at Sao Filipe, Fogo (Fire), Cape Verde Islands, Atlantic Ocean, Africa
Volcano, Vulcan Agua, Antigua, Guatemala, Central America
Penstemon flowers, Mount St. Helens, Mount St. Helens National Volcanic Monument, Washington state, United States of America, North America
Villarrica Volcano, Villarrica National Park, Pucon, Chile, South America
Volcano of Parinacola, 6348m high, reflected in water of Chungara Lake, Parque Nacional de Lauca, Chile, South America
Black volcanic sand beach at Sao Filipe, Fogo (Fire), Cape Verde Islands, Atlantic Ocean, Africa
Brown water flowing from river fed with volcanic silt, Costa Rica
Mt Ngauruhoe volcano, beyond Red Crater, in the Tongariro National Park, Taupo, North Island, New Zealand
Island view from Puyehue volcano, Lago Puyehue (Lake Puyehue), Chile, South America
Clouds over the Rincon Volcano, near Rincon de la Vieja National Park, Gaunacaste, Costa Rica
Mount St. Helens, Mount St. Helens National Volcanic Monument, Washington state, United States of America, North America
Lassen Volcanic National Park, California, United States of America, North America
Mount St. Helens, with steam plume from rising dome within crater, seen from Johnston Ridge Visitor Centre, Washington state, United States of America, North America
Lassen Volcanic National Park, California, United States of America, North America
Mount Gunung Batur volcano, Bali, Indonesia
Eruptions at the Monti Calcarazzi fissure and the Piano del Lago cone, above, on Mount Etna that threatened tourist facilities and villages in 2001, Sicily, Italy, Europe
Mount Etna volcano from Taormina, Mount Etna Region, Sicily, Italy, Europe
Birdman petroglyphs at Orongo ceremonial village on rim of crater Rano Kau, offshore lie bird islands of Motu Kao Kao, Motu Iri and Motu Nui, Easter Island, Chile, Pacific
Volcanic peaks of the Pitons, Soufriere Bay, St. Lucia, Caribbean, West Indies, Central America
Hot pools and boiling mud at Namaskard thermal area, Hverarond, near Lake Myvatn, North area, Iceland, Polar Regions
Panoramic view of tufa formations, Devrent Valley (Pink Valley), near Zelve, Cappadocia, Anatolia, Turkey, Asia Minor, Asia
Hikers, volcanic scenery and hiking trail, Kirishima National Park, Kagoshima prefecture, Kyushu, Japan, Asia
Caldera Colorado, volcanic landscape, Parque Nacional de Timanfaya, Lanzarote, Canary Islands, Spain, Europe
Tabacon Hot Springs, Volcanic hot springs fed from the Arenal Volcano, Arenal, Costa Rica
Morning Glory Pool, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Tourists on the boardwalk around the Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
El Tatio Geysers, at 4300m above sea level El Tatio is the world's highest geyser field, the area is ringed by volcanoes and fed by 64 geysers, Atacama Desert, Norte Grande, Chile, South America
Bartolome Island with Pinnacle Rock, a volcanic plug, to the right, the location featured in the 2003 film Master and Commander, Galapagos islands, UNESCO World Heritage Site, Ecuador, South America
Aerial of a Volcanic crater outside, Goma, Democratic Republic of Congo, Africa
Lava and ash floes in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
The endemic Galapagos marine iguana (Amblyrhynchus cristatus) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
The endemic lava cactus (Brachycereus spp) growing in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Playa Caleta Larga, Cabo San Antonio, Guanahacabibes Peninsula National Park and Biosphere Reserve, Pinar del Rio, Cuba, West Indies, Caribbean, Central America
Chachani volcano, Arequipa Province, Arequipa Region, Peru, South America
El Misti and Chachani volcanoes seen from salt flats of Salinas y Aguada Blanca National Reserve, Arequipa Region, Peru, South America
El Teide National Park, UNESCO World Heritage Site, Tenerife, Canary Islands, Spain, Atlantic, Europe
Hiking path in the ashes of Mount Fuji in a fog cloud, Honshu, Japan, Asia
Hiking path in the ashes of Mount Fuji in a fog cloud, Honshu, Japan, Asia
Aloe arborescens on edge of cliff, Quinta do Furao, Santana, North coast, Madeira island, Atlantic Ocean, Portugal
AlUla Zipline, from Harrat volcanic plateau, racing 1.5km at up to 120km/hr, in incredible scenery of the Mountains, Medina Province, Saudi Arabia
Mountainscape viewed from the top of Harrat volcanic plateau, AlUla, Medina Province, Saudi Arabia
Mountainscape viewed from the top of Harrat volcanic plateau, AlUla, Medina Province, Saudi Arabia
Encounter with dromedaries on the road that crosses the Harrat volcanic plateau, AlUla, Medina Province, Saudi Arabia
Encounter with dromedaries on the road that crosses the Harrat volcanic plateau, AlUla, Medina Province, Saudi Arabia
Encounter with dromedaries on the road that crosses the Harrat volcanic plateau, AlUla, Medina Province, Saudi Arabia
People at the Viewpoint on the Harrat volcanic plateau, AlUla, Medina Province, Saudi Arabia
Woman responsible for ensuring safety and good behavior of visitors at the Viewpoint, Harrat volcanic plateau, AlUla, Medina Province, Saudi Arabia
Woman responsible for ensuring visitor safety and good behavior at the Viewpoint, Harrat volcanic plateau, AlUla, Medina Province, Saudi Arabia
Ribera dos Caldeiroes waterfalls, near Achada, Sao Miguel, Azores Islands, Atlantic, Portugal
Trees and Lagoa Azul, Sete Cidades, Sao Miguel, Azores Islands, Atlantic, Portugal
Atlantic surf at Mosteiros, north west coast, Sao Miguel, Azores Islands, Atlantic, Portugal
Mosteiros and coast, Sao Miguel, Azores Islands, Atlantic, Portugal
Aerial of the Trou du Natron volcanic crater and its natron lakes, Tibesti Mountains, Chad
Tousside volcano above Trou du Natron, Tibesti Mountains, Chad
Aerial of the Trou du Natron volcanic crater and its natron lakes, Tibesti Mountains, Chad
Aerial of the Trou du Natron volcanic crater and its natron lakes, Tibesti Mountains, Chad
Aerial over Trou du Natron with volcano Tousside in the background, Tibesti Mountains, Chad
Aerial of the Trou du Natron volcanic crater and its natron lakes, Tibesti Mountains, Chad
Aerial of the Trou du Natron volcanic crater and its natron lakes, Tibesti Mountains, Chad
Aerial of the Trou du Natron volcanic crater and its natron lakes, Tibesti Mountains, Chad
View of geysers at Geysir Hot Springs in winter, Western Region, Iceland
View of geysers at Geysir Hot Springs in winter, Western Region, Iceland
Continental drift between North American and Eurasian tectonic plates, Thingvellir National Park, UNESCO, in winter, Western Region, Iceland
Continental drift between North American and Eurasian tectonic plates, Thingvellir National Park in winter, UNESCO, Western Region, Iceland
People and continental drift of North American and Eurasian tectonic plates, Thingvellir National Park in winter, UNESCO, Western Region, Iceland
View of snow covered landscape in Thingvellir National Park, UNESCO, in winter, Western Region, Iceland
Sheep grazing on remote Heimaey Island, Iceland
A view of the boiling mud at Namafjall, Iceland
Snow covered frozen Viti (Hell) crater near Krafla power plant, Lake Myvatn, North area, Iceland, Polar Regions
The endemic Galapagos marine iguana (Amblyrhynchus cristatus) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Mount Vesuvius volcano crater and red rock landscape, near Naples, Campania, Italy, Europe
Guests from the Lindblad Expedition ship National Geographic Endeavour in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Aerial drone view of particular ice textures formed in the Svinafellsjokull glacier following global warming, Iceland, Polar Regions
Mount Vesuvius, a volcano located on the Bay of Naples about 9km from the city of Naples, Campania, Italy
Pinnacle Rock on Bartolome Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Mountainscape viewed from the top of Harrat volcanic plateau, AlUla, Medina Province, Saudi Arabia
Aerial over Trou du Natron with volcano Tousside in the background, Tibesti Mountains, Chad
View of geysers at Geysir Hot Springs in winter, Western Region, Iceland
Pinnacle Rock, a volcanic plug on Bartolome Island, one of the most spectacular features of the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Sunset on the remote volcanic island of Tristan da Cunha, South Atlantic Ocean
El Misti volcano rising above the white city of Arequipa, UNESCO World Heritage Site, Arequipa, Peru, South America
El Teide National Park, UNESCO World Heritage Site, Tenerife, Canary Islands, Spain, Atlantic, Europe
The endemic Galapagos marine iguana (Amblyrhynchus cristatus) on Espanola Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Kicker Rock, a volcanic formation near the island of San Cristobal, a popular spot for snorkelling, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Quilotoa Lake, Cotopaxi Province, Ecuador
Injured juvenile yellow-footed gull (Larus livens), on Isla Coronado, Baja California Sur, Sea of Cortez, Mexico, North America
Woman standing on a rock overlooking the Wadi Shab, canyon near Tiwi, Sultanate of Oman, Arabian Peninsula
Galapagos Land Iguana (Conolophus subcristatus), large lizard can can grow to five feet long and live for 60 years, South Plaza island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Adult rockhopper penguins (Eudyptes chrysocome chrysocome) at breeding and molting colony on New Island, Falkland Islands
Mount Sibayak, 2094m high, an active volcano in the Karo Highlands, North Sumatra, Sumatra, Indonesia, Southeast Asia, Asia
Sarakiniko volcanic rock formations at sunset, island of Milos, Cyclades, Greek Islands, Greece, Europe
El Tatio Geysers, at 4300m above sea level El Tatio is the world's highest geyser field, the area is ringed by volcanoes and fed by 64 geysers, Atacama Desert, Norte Grande, Chile, South America
Yellow-footed gull (Larus livens), on its nest on Isla Coronado, Baja California Sur, Sea of Cortez, Mexico, North America