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The lagoon with the world's most southerly coral reef, at this 10km long volcanic island in the Tasman Sea, Lord Howe Island, UNESCO World Heritage Site, New South Wales, Australia, Pacific
Cactus plants inside Jardin de Cactus designed by Cesar Manrique, Guatiza, Lanzarote, Canary Islands, Spain, Atlantic, Europe
Sandy beach of Playa de las Conchas, Graciosa island, Lanzarote, Canary Islands, Spain, Atlantic, Europe
Sulphur miners working in the crater at Kawah Ijen, Java, Indonesia, Southeast Asia, Asia
Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Coastal landscape near Majanicho on north coast of Fuerteventura, Canary Islands, Spain, Atlantic, Europe
Desert road stretching into the distance with rocky mountains under a clear blue sky in Tenerife, Canary Islands, Spain, Atlantic, Europe
Petroglyph National Monument, petroglyphs carved into volcanic rock by American Indians 400 to 700 years ago, New Mexico, United States of America, North America
Petroglyph National Monument, petroglyphs carved into volcanic rock by American Indians 400 to 700 years ago, New Mexico, United States of America, North America
Petroglyph National Monument, petroglyphs carved into volcanic rock by American Indians 400 to 700 years ago, New Mexico, United States of America, North America
Road leading to cone of Mount Corona volcano and Ye village, Haria, Lanzarote, Canary Islands, Spain, Atlantic, Europe
View of Aeolian Islands archipelago from Gran Cratere, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
Multi coloured geothermal river in the Waimangu Volcanic Valley, North Island, New Zealand, Pacific
Morning Glory Pool, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Volcanic beach in front of the glacier ice of Deception Island, South Shetland Islands, Antarctica, Polar Regions
Petroglyph National Monument, petroglyphs carved into volcanic rock by American Indians 400 to 700 years ago, New Mexico, United States of America, North America
Bubbling mud, Waiotapu Thermal Area, Rotorua, North Island, New Zealand, Pacific
Hikers out on the Atacama Salt Flats, with snow-capped volcanic peaks in the background, near San Pedro de Atacama, Chile, South America
Irazu volcano, Irazu Volcano National Park, Cartago Province, Costa Rica, Central America
Arenal Volcano from the La Fortuna side, Costa Rica
Road leading to Mount Ngauruhoe, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Smoke plume rising over glacier, Eyjafjallajokull volcano, Iceland, Polar Regions
Boats in harbour at Corralejo, Fuerteventura, Canary Islands, Spain, Atlantic, Europe
Ruins of pre-Spanish Mahos village, Poblado de la Atalayita, Pozo Negro, Fuerteventura, Canary Islands, Spain, Atlantic, Europe
Landscape covered in volcanic ash and dust with the ash plume of the Eyjafjallajokull eruption in the distance, southern area, Iceland, Polar Regions
Eroded calcarenite rock (cemented coral sands) with Mount Lidgbird and Mount Gower by the lagoon with the world's most southerly coral reef, on this 10km long volcanic island in the Tasman Sea, Lord Howe Island, UNESCO World Heritage Site, New South Wales, Australia, Pacific
Old Settlement Bay and Mount Lidgbird on left and Mount Gower by the lagoon with the world's most southerly coral reef, volcanic island in the Tasman Sea, Lord Howe Island, UNESCO World Heritage Site, New South Wales, Australia, Pacific
Endemic kentia palms that are also cultivated for worldwide sale with Mount Lidgbird on the left and Mount Gower by the lagoon with the world's most southerly coral reef, on this 10km long volcanic island in the Tasman Sea, Lord Howe Island, UNESCO World Heritage Site, New South Wales, Australia, Pacific
Volcanic desert landscape and its fabulous geographical structures caught in evening light, Goreme, Cappadocia, Anatolia, Turkey, Asia Minor, Eurasia
Goreme, UNESCO World Heritage Site, Cappadocia, Anatolia, Turkey, Asia Minor, Eurasia
Poas Volcano, Poas National Park, Costa Rica, Central America
Etna South, Mount Etna, UNESCO World Heritage Site, Catania, Sicily, Italy, Europe
Volcanic crater (rano), Rano Kau, Easter Island, Chile
Andean volcanic landscape near the Blue Lake (Laguna Celeste), Eduardo Avaroa National Reserve, Los Lipez, Southwest Bolivia, South America
Panoramic view of volcanic landscape near the village of Cavusin, near Goreme, Cappadocia, Anataolia, Turkey, Asia Minor, Asia
Smoking geothermal acitve field in the Waimangu Volcanic Valley, North Island, New Zealand, Pacific
Scenic sunset photo of the mountains in Tenerife, Canary Islands, Spain, Atlantic, Europe
Kasha-Katuwe Tent Rock National Monument, tent like rock formations, from volcanic eruptions 6 to 7 million years ago, New Mexico, United States of America, North America
Saint Michel d'Aiguilhe Chapel situated on the top of volcanic rock, Le Puy en Velay, Haute-Loire, Massif Central, France, Europe
Cacti on Isla de los Pescadores, Volcan Tunupa and the salt flats, Salar de Uyuni, Southwest Highlands, Bolivia, South America
Selime, Ihlara, western Cappadocia, Anatolia, Turkey, Asia Minor, Eurasia
Volcanic plateau of Sierra Tarahumara, above Copper Canyon, Chihuahua, Mexico, North America
Aerial of Lalolalo lake volcanic crater lake, center of Wallis, Wallis and Futuna, South Pacific, Pacific
The volcanic mountain chain of the Virunga National Park, UNESCO World Heritage Site, Democratic Republic of the Congo, Africa
The Blue Lake, a natural reservoir and one of three crater lakes at the top of Mt Gambier, an extinct volcano and town in the south east of the state, South Australia, Australia
View from the San Pedro volcano of San Pedro and Lago Atitlan (Lake Atitlan), Guatemala, Central America
Volcanic cones, palm trees and lake in rural area near Kampung Pulo, Kecamatan Leles, Garut, West Java, Java, Indonesia, Southeast Asia, Asia
Female tourist on boardwalk by the Morning Glory Pool, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Apartment block and palm trees, overlooking Playa del Matorral, at Morro Jable, on the volcanic island of Fuerteventura, Canary Islands, Spain, Atlantic, Europe
Solfatara, volcanic crater with active fumaroles, Pozzuoli, Naples, Campania, Italy, Europe
Coastal landscape near village of Majanicho on the north coast, Fuerteventura, Canary Islands, Spain, Atlantic, Europe
Cactus plants and windmill Jardin de Cactus designed by Cesar Manrique, Guatiza. Lanzarote, Canary Islands, Spain, Atlantic, Europe
Cactus plants inside Jardin de Cactus designed by Cesar Manrique, Guatiza, Lanzarote, Canary Islands, Spain, Atlantic, Europe
Scenic view of a tranquil volcanic landscape with clear blue sky in Tenerife, Canary Islands, Spain, Atlantic, Europe
Petroglyph National Monument, petroglyphs carved into volcanic rock by American Indians 400 to 700 years ago, New Mexico, United States of America, North America
Bubbling mud, Waiotapu Thermal Area, Rotorua, North Island, New Zealand, Pacific
Pinnacles of volcanic ash, Urgup, UNESCO World Heritage Site, Cappadocia, Anatolia, Turkey, Asia Minor, Eurasia
Interesting volcanic rock formations surrounding the town of Hanavave, Fatu Hiva, Marquesas, French Polynesia, South Pacific, Pacific
Etna South, Mount Etna, UNESCO World Heritage Site, Catania, Sicily, Italy, Europe
Etna South, Mount Etna, UNESCO World Heritage Site, Catania, Sicily, Italy, Europe
Rock climber attempts bouldering, and volcano in background, Conguillio National Park, Chile, South America
Multi-coloured crater lakes at summit of Kelimutu volcano, eastern Flores, Nusa Tenggara, Indonesia, Southeast Asia, Asia
Multi-coloured crater lakes at summit of Kelimutu volcano, eastern Flores, Nusa Tenggara, Indonesia, Southeast Asia, Asia
Kasha-Katuwe Tent Rock National Monument, tent like rock formations, from volcanic eruptions 6 to 7 million years ago, New Mexico, United States of America, North America
Typical Greek village perched on volcanic rock with white and blue houses and windmills, Santorini, Cyclades, Greek Islands, Greece, Europe
Jungman Daepo columnar jointed lava formation, Seogwipo, Jeju Island, UNESCO World Heritage Site, South Korea, Asia
Lake Helen and Mount Lassen, 3187 meters, in the background, Lassen Volcanic National Park, California, United States of America, North America
Basalt columns and a tourist ferry, Staffa Island, Inner Hebrides, Scotland, United Kingdom, Euorpe
The town of Orchisar, showing the old tunneled houses dug into the volcanic rock, Cappadocia, Anatolia, Turkey, Asia Minor, Eurasia
Uchisar, Cappadocia, Anatolia, Turkey, Asia Minor, Eurasia
Glassy pieces of ice on volcanic black sand beach with blurred waves, near Jokulsarlon Lagoon, South Iceland, Polar Regions
Mauna Kea, Big Island, Hawaii, United States of America, North America
Tourist standing on the edge of the Darvaza Gas crater, Turkmenistan, Central Asia, Asia
Puffin (Fratercula arctica), Heimaey Island, Vestmannaeyjar, volcanic Westman Islands, Iceland, Polar Regions
Ocean View new villa development at Playa Blanca, Lanzarote, Canary Islands, Spain, Atlantic, Europe
View from Dyrholaey towards the volcanic sand beach and rock stacks at Reynisdrangar, near the village of Vik i Myrdal, southern area, Iceland, Polar Regions
Wai-O-Tapu Thermal Wonderland, Rotorua, North Island New Zealand, Pacific
Mount Bromo volcanic eruption sending up an ash cloud, East Java, Indonesia, Southeast Asia, Asia
Mount Bromo volcano erupting at sunrise, sending volcanic ash high into the sky, East Java, Indonesia, Southeast Asia, Asia
Basalt columns, Staffa Island, Inner Hebrides, Scotland, United Kingdom, Europe
Icebergs on a black sand volcanic beach next to the Jokulsarlon glacial lake in Vatnajokull National Park, southeast Iceland, Polar Regions
The view of the mountains of Vestrahorn from black volcanic sand beach with grasses at sunset, Stokksnes, South Iceland, Iceland, Polar Regions
Mount Escriva, South Etna, Catania, Sicily, Italy, Europe
Agri Dagi, Mount Ararat, volcano is the highest mountain in Turkey at 5165m, Anatolia, Turkey, Asia Minor, Asia
The colourful multi hued Champagne Pool, Wai-O-Tapu Thermal Wonderland, Waiotapu, North Island, New Zealand, Pacific
Volcaic ashes at Salto Truful, Volcan Llaima, Conguillio National Park, Lakes District, southern Chile, South America
Mimosa rocks and rock pool in natural bay composed of volcanic Rhyolite rock, around 360 million years old, Mimosa Rocks National Park, New South Wales, Australia, Pacific
Atlantic Ocean waves crash onto black volcanic sand at Taganana, Tenerife, Canary Islands, Spain, Atlantic, Europe
Black sand beach at Ajuy, Fuerteventura, Canary Islands, Spain, Atlantic, Europe
Small red volcano and volcanic hills in Domadalshraun just north of Landmannalaugar, Fjallabak region, Iceland, Polar Regions
Petroglyph National Monument, petroglyphs carved into volcanic rock by American Indians 400 to 700 years ago, New Mexico, United States of America, North America
Volcano eruptions at the Volcano Yasur, Island of Tanna, Vanuatu, South Pacific, Pacific
Tourists exploring White Island Volcano, an active volcano in the Bay of Plenty, North Island, New Zealand, Pacific
Tourists exploring White Island Volcano, an active volcano in the Bay of Plenty, North Island, New Zealand, Pacific
Poas volcano, Poas National Park, Costa Rica, Central America
Koryaksky volcano, 3456m high, conical andesite volcano, Kamchatka, East Siberia, Russia
Griggs volcano overlooks Valley of Ten Thousand Smokes filled by ash in 1912 eruption of Katmai, Katmai Volcano National Park, Alaska, USA, North America
Colourful volcanic rock, Mount Tarawera, Rotorua, South Auckland, North Island, New Zealand, Pacific
Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Volcanic peaks against deep blue sky, Jandia peninsula, Fuerteventura, Canary Islands, Spain, Atlantic, Europe