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Emerald Lakes at sunrise, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Emerald Lakes at sunrise, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Emerald lake on volcano slope, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Close up of turquoise, vibrant Emerald Lake with steaming volcano, Tongariro Crossing, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Close up of turquoise, vibrant Emerald Lake with steaming volcano on Tongariro Crossing, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
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
Aerial of a Volcanic crater outside, Goma, Democratic Republic of Congo, Africa
Pico Viejo, Caldeira de las Canadas, Mount Teide, Mount Teide National Park, UNESCO World Heritage Site, Tenerife, Canary Islands, Spain, Atlantic Ocean, Europe
Pompeii, UNESCO World Heritage Site, archaeological site of ancient city destroyed by Mount Vesuvius volcanic eruption, near Naples,Campania, Italy, Europe
Centaur statue in Pompeii, UNESCO World Heritage Site, archaeological site of ancient city destroyed by Mount Vesuvius volcanic eruption, near Naples,Campania, Italy, Europe
El Teide National Park, UNESCO World Heritage Site, Tenerife, Canary Islands, Spain, Atlantic, Europe
Bartolome Island with Pinnacle Rock, a volcanic plug, to the right, 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
Lava lizard (Microlophus spp) in the Galapagos Island Archipelago, 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
Bartolome Island with Pinnacle Rock, a volcanic plug, to the right, a location in the 2003 film Master and Commander, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
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
The archaeological ruins of Pompeii, UNESCO, Campania, Italy
The spectacular scenery of the north coast and volcanic highlands of Saint Anthony, Cape Verde
Continental drift between North American and Eurasian tectonic plates, Thingvellir National Park in winter, UNESCO, Western Region, Iceland
Mount Ngauruhoe during sunrise and sunsrise on Mount Tongariro, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Dry volcanic landscape on the summit plain on Tongariro Alpine Crossing, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Aerial close up of a sunlit creek surrounded by volcanic ash, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Vast arid volcanic landscape before sunrise, on high plateau of Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Shore of the Emerald Lake, natural vibrant colour gradient with view on the Red Crater Volcano of Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Turquoise and yellow green Emerald Lake in front of the Tongariro Volcano, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Shore of the Emerald Lake, natural vibrant colour gradient with view on the Red Crater Volcano of Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Steam of the volcano on ashes and arid landscapes, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Emerald Lake in Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Leirhnjukur thermal area and eruption site near Krafla geothermal power station, Lake Myvatn, North area, Iceland, Polar Regions
Guest from the Lindblad Expedition ship National Geographic Endeavour 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
Stepping stones above perpetually flowing water needed to cross streets and keep the way clear for carts, archaeological site of Pompeii, UNESCO World Heritage Site, province of Naples, Campania, Italy, Europe
Lava bombs erupt from multiple vents on volcano, active for at least 2000 years, Stromboli, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
Tourists visiting Lava field in Sullivan Bay, Santiago (James) Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Panoramic view, crater of Blue Lake and Tongariro Volcano at sunrise, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Wide angle view of an Emerald Lake in front of Red Crater Volcano in the Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Volcano trekking, Stromboli, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
El Teide National Park, UNESCO World Heritage Site, Tenerife, Canary Islands, Spain, Atlantic, Europe
El Teide National Park, UNESCO World Heritage Site, Tenerife, Canary Islands, Spain, Atlantic, Europe
Orchard and vineyard, archaeological site of Pompeii, UNESCO World Heritage Site, province of Naples, Campania region, Italy, Europe
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
Sombrero Chino (Chinese Hat) Island, just off Santiago Island in the Galapagos, UNESCO World Heritage Site, Ecuador, South America
Lava bombs erupt from multiple vents on this volcano, active for at least 2000 years, Stromboli, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
People looking at view of Stromboli island from Gran crater rim, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
Traditional houses in Chuzenjiko Onsen below Mount Nantai, Nikko's sacred volcano, UNESCO World Heritage Site, Nikko, Tochigi Prefecture, Kanto, Honshu, Japan, Asia
The three emerald lakes and volcano landscape of the Tongariro Alpine Crossing, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Aerial view of hot air balloon over rock formations in Love Valley at sunrise, Goreme, Goreme Historical National Park, UNESCO World Heritage Site, Cappadocia, Central Anatolia Region, Anatolia, Turkey, Asia Minor, Asia
Lava bombs erupt from multiple vents on volcano, active for at least 2000 years, Stromboli, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
Sunrise above the Emerald Lakes, view from red crater, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Red sunrise on the ridge of Tongariro Volcano and arid ash fields in the foreground, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
El Misti volcano rising above the white city of Arequipa, UNESCO World Heritage Site, Arequipa, Peru, South America
Lava bombs erupt from multiple vents on volcano, active for at least 2000 years, Stromboli, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
Gran Cratere and Aeolian Islands view, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Geologists taking minerals samples on Gran Cratere (The Great Crater), Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
View across rolling volcanic landscape to the summit of Mount Etna, UNESCO World Heritage Site, at sunrise, Taormina, Messina, Sicily, Italy, Mediterranean, Europe
Mount Etna volcano covered with snow on a clear and sunny day, UNESCO World Heritage Site, Etna Park, Catania province, Sicily, Italy, Mediterranean, Europe
Traditional houses in Chuzenjiko Onsen below Mount Nantai, Nikko's sacred volcano, UNESCO World Heritage Site, Nikko, Tochigi Prefecture, Kanto, Honshu, Japan, Asia
View along the slope and hiking trail up towards the Red Crater Volcano, on Tongariro Alpine Crossing, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Grand Prismatic Spring and Excelsior Pool behind, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Volcanic cone, Seongsan Ilchulbong (Sunrise Point) on Jeju Island, UNESCO World Heritage Site, South Korea, Asia
Lava bombs erupt from multiple vents on volcano, active for at least 2000 years, Stromboli, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
Furnas Valley, a site of bubbling hot springs and fumaroles on the Azorean capital island of Sao Miguel, Azores, Portugal, Europe
Sierra Negra Volcano, Highlands of Isabela (Albemarle) Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Volcanic landscape, Mauna Loa, Hawaii Volcanoes National Park, UNESCO World Heritage Site, Big Island, Hawaii, United States of America, North America
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
The Tongariro Crossing crosses 19 kilometers of the barren, volcanic desert, Tongariro National Park, UNESCO World Heritge Site, North Island, New Zealand, Pacific
Lava bombs erupt from multiple vents on volcano, active for at least 2000 years, Stromboli, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
Gran Cratere (The Large Crater), Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Sulphur and fumarole smoke on volcano Gran crater, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
First snow covering the summit of Mount Etna volcano seen from inland, UNESCO World Heritage Site, Etna Park, Catania province, Sicily, Italy, Mediterranean, Europe
Black Sand beach, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Sulphur and fumaroles smoke on volcano Gran Cratere, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Colorful scrub fields in front of Ngauruhoe Volcano and Pukekaikiore in Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Trekkers approaching Stromboli volcano, Stromboli, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
Roman town of Herculaneum, UNESCO World Heritage Site, Campania, Italy, Europe
Ngorongoro crater, UNESCO World Heritage Site, Tanzania, East Africa, Africa
Furnas Valley, a site of bubbling hot springs and fumaroles on the Azorean capital island of Sao Miguel, Azores, Portugal, Europe
Porto di Levante and Vulcanello view, Lipari and Pannarea Island in the background, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
The Giants Causeway, UNESCO World Heritage Site, County Antrim, Ulster, Northern Ireland, United Kingdom, Europe
View of Gran Cratere and Finicudi Island, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Teide Mountain covered with snow and Roques de Garcia, Teide National Park, UNESCO World Heritage Site, Tenerife Island, Canary Islands, Spain, Europe
Los Gemelos Volcano, Santa Cruz (Indefatigable) Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Stromboli volcano erupting, Stromboli, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, 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
Volcanic crater before the smoking Kilauea Summit Lava Lake in the Hawaii Volcanoes National Park,UNESCO World Heritage Site, Big Island, Hawaii, United States of America, Pacific
Pitt Point, a volcanic tuff formation on San Cristobal Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
The Giants Causeway, UNESCO World Heritage Site, County Antrim, Ulster, Northern Ireland, United Kingdom, Europe
An aerial view of the Ngorongoro Crater, UNESCO World Heritage Site, Tanzania, East Africa, Africa
View of Gran Cratere, Lipari and Salina Island, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Volcanic landscape of Bartolome Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Los Roques de Garcia at Caldera de las Canadas, Pico de Teide at sunset, National Park Teide, UNESCO World Heritage Site, Tenerife, Canary Islands, Spain, Europe
The Giants Causeway, UNESCO World Heritage Site, County Antrim, Ulster, Northern Ireland, United Kingdom, Europe
Teide National Park, UNESCO World Heritage Site, Tenerife, Canary Islands, Spain, Europe
Volcanic lava stream in the Hawaii Volcanoes National Park, UNESCO World Heritage Site, Big Island, Hawaii, United States of America, Pacific
Volcanic crater island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
The Giants Causeway, UNESCO World Heritage Site, County Antrim, Ulster, Northern Ireland, United Kingdom, Europe
The northwest coast of Isabela Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America