1178-13077 - Black Pool in West Thumb Geyser Basin, Yellowstone National Park, Wyoming

1178-13079 - Sunrise, steam and boardwalk, West Thumb Geyser Basin, Yellowstone National Park, Wyoming

1178-13086 - Grand Prismatic Spring in Midway Geyser Basin, Yellowstone National Park, Wyoming

1178-13083 - Steam from Mastiff Geyser in Upper Geyser Basin, Yellowstone National Park, Wyoming

1178-13080 - Sunrise, steam and boardwalk, West Thumb Geyser Basin, Yellowstone National Park, Wyoming

1178-13085 - Opal Pool in Midway Geyser Basin, Yellowstone National Park, Wyoming

1178-13081 - Steam from Castle Geyser in Upper Geyser Basin, Yellowstone National Park, Wyoming

1178-13087 - Dead tree and dry terrace at Canary Spring, Mammoth Hot Springs, Yellowstone National Park, Wyoming

1178-13082 - Morning Glory Pool in Upper Geyser Basin, Yellowstone National Park, Wyoming

1178-13078 - Fishing Cone and sunrise over Yellowstone Lake, West Thumb Geyser Basin, Yellowstone National Park, Wyoming

1178-13084 - Colorful bacteria mat surrounding Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming

911-10809 - The old abandoned whaling station on Deception Island in the South Shetland Islands off the Antarctic Peninsular which is an active volcanic caldera.

911-10808 - The old abandoned whaling station on Deception Island in the South Shetland Islands off the Antarctic Peninsular which is an active volcanic caldera.

1178-9612 - Mastiff Geyser, Mastiff Geyser in Upper Geyser Basin, Yellowstone National Park, Wyoming

1178-9614 - Midway Geyser Basin, Grand Prismatic Spring, Grand Prismatic Spring in Midway Geyser Basin, Yellowstone National Park, Wyoming

1178-9613 - Midway Geyser Basin Grand Prismatic Spring, Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming

1178-9609 - West Thumb Geyser Basin, West Thumb Geyser Basin, Yellowstone National Park, Wyoming

1178-9611 - West Thumb Geyser Basin, Sun reflecting in water, West Thumb Geyser Basin, Yellowstone National Park, Wyoming

1178-9610 - West Thumb Geyser Basin at sunrise, West Thumb Geyser Basin, Yellowstone National Park, Wyoming

911-10190 - Deception Island in the South Shetland Islands off the Antarctic Peninsular is an active volcanic caldera, the beach is steaming from the geothermal heat.

911-10193 - The old British Antarctic Survey station on Deception Island in the South Shetland Islands off the Antarctic Peninsular which is an active volcanic caldera. It was abandoned in 1967 when it was over run by a volcanic eruption.

911-10192 - Passengers on an expedition cruise climbing the caldera on Deception Island in the South Shetland Islands off the Antarctic Peninsular which is an active volcanic.

911-10191 - Passengers on an expedition cruise climbing the caldera on Deception Island in the South Shetland Islands off the Antarctic Peninsular which is an active volcanic.

911-10196 - Deception Island in the South Shetland Islands off the Antarctic Peninsular is an active volcanic caldera.

911-10194 - A stove at the old British Antarctic Survey station on Deception Island in the South Shetland Islands off the Antarctic Peninsular which is an active volcanic caldera. It was abandoned in 1967 when it was over run by a volcanic eruption.

1113-98956 - Geothermal hot springs near Gunnuhver, wooden platform, Reykjanes, Iceland

83-12894 - Mud pots, fumaroles and dormant Volcan Santa Clara at the San Jacinto volcanic thermal area north of Leon, Leon, Nicaragua, Central America

749-2099 - A geothermal hotspring pool with dissolved minerals, Geysir, Golden Circle, Iceland, Polar Regions

749-2095 - Strokkur geyser, Geysir, Golden Circle, Iceland, Polar Regions

749-2090 - Geothermal fields at Krysuvik, Reykjanes Peninsula, Iceland, Polar Regions

749-2091 - Geothermal fields at Krysuvik, Reykjanes Peninsula, Iceland, Polar Regions

1179-63 - The El Tatio Geothermal Field, located in the Altiplano of northern Chile, South America

1179-69 - Sol de Manana, a geothermal field in Sur Lipez Province in the Potosi Department, Bolivia, South America

816-7875 - Erupting Old Faithful Geyser, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

816-7874 - Colourful Emerald Pool, Black Sand Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

816-7887 - Travertine terraces in Mammoth hot springs terraces, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

816-7872 - Opalescent pool in the Black Sand Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

816-7886 - Travertine terraces in Mammoth hot springs terraces, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

816-7888 - Travertine terraces in Mammoth hot springs terraces, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

816-7873 - Cliff Geyser erupting in the Black Sand Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

385-1710 - Steam rising off hot geothermal pipes at dawn, Wairakei Steam Field, Taupo, North Island, New Zealand, Pacific

801-1399 - Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

801-1398 - Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

801-1394 - Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

801-1395 - Devil's Thumb, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North  America

801-1397 - Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

801-1400 - Tourists watching Old Faithful Geyser, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

801-1396 - Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

801-1386 - Turquoise Pool, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

801-1388 - Excelsior Geyser Crater, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

801-1390 - Porcelain Basin, Norris Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

801-1389 - Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

801-1385 - Firehole Spring, Firehole Lake Drive, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

801-1387 - Pool runoff of orange bacteria and algae (Therophiles), Grand Prismatic Pool, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

1113-96182 - Champagne Pool, Waio-tapu crater lake, Geothermal area near Rotorua, North Island, New Zealand

832-368200 - Strokkur Geyser, Haukadalur Valley, Golden Circle, Su√∞urland, Sudurland, Southern Iceland, Iceland, Europe

832-368319 - Hot spring, sinter terraces, Hveravellir high-temperature or geothermal region, Highlands, Iceland, Europe

832-368299 - Solfataras, fumaroles, mud pools, sulfur and other minerals, viewing platform, steam, Hveraroend geothermal area, N√°mafjall mountains, M√Ωvatn area, Nor√∞urland eystra, the north-east region, Iceland, Europe

832-368316 - Blue water pool, Bl√°hver hot spring, Hveravellir high-temperature or geothermal region, Highlands, Iceland, Europe

832-368096 - Morning Glory Pool, a hot spring in Upper Geyser Basin, Yellowstone National Park, Wyoming, USA

832-373436 - Hot springs with Flamingos (Phoenicopteriformes, Phoenicopteridae) in the steaming water, Uyuni, Bolivia, South America

832-368301 - Krafla volcano on lake Viti, steam from a geothermal power plant, Myvatn area, Nordurland eystra, north-east region, Iceland, Europe

832-368239 - Hiker on a trail, hot springs and snow-capped Rhyolite Mountains, Hveradallir high temperature region, Kerlingarfjoell, highlands, Iceland, Europe

832-368298 - Solfataras, fumaroles, mud pools, sulfur and other minerals, steam, Hveraroend geothermal area, N√°mafjall mountains, M√Ωvatn area, Nor√∞urland eystra, the north-east region, Iceland, Europe

832-368317 - Blue water pool, Bl√°hver hot spring, Hveravellir high-temperature or geothermal region, Highlands, Iceland, Europe

832-368092 - Mineral deposits at a hot spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA

832-368089 - Crested Pool, a hot spring in Upper Geyser Basin, Yellowstone National Park, Wyoming, USA

832-368091 - Riverside Geyser, Upper Geyser Basin, Yellowstone National Park, Wyoming, USA

832-368241 - Steaming creek, hot springs and Rhyolite Mountains, Hveradallir high temperature area, Kerlingarfjoell, highlands, Iceland, Europe

832-368297 - Solfataras, fumaroles, mud pools, sulfur and other minerals, steam, Hveraroend geothermal area, N√°mafjall mountains, M√Ωvatn area, Nor√∞urland eystra, the north-east region, Iceland, Europe

832-368090 - Morning Glory Pool, a hot spring in Upper Geyser Basin, Yellowstone National Park, Wyoming, USA

832-377313 - Steaming geyser at the geyser field of El Tatio, Chile

832-368095 - Sawmill Geyser, Upper Geyser Basin, Yellowstone National Park, Wyoming, USA

832-368234 - Tourists watching steam and a water spout, Strokkur geyser, backlit, Haukadalur valley, Golden Circle, Su√∞urland, Sudurland, southern Iceland, Iceland, Europe

832-370513 - Young woman enjoys bathing in hot spring, Blue Lagoon, Iceland, Europe

832-373438 - Geysers with water vapour against a deep blue sky, Uyuni, Bolivia, South America

832-368315 - Tourists watching a steam and water column, Stokkur geyser against the light, Haukadalur Valley, Golden Circle, Su√∞urland, South Iceland, Iceland, Europe

832-370514 - Young woman enjoys bathing in hot spring, Blue Lagoon, Iceland, Europe

832-374180 - Grand Prismatic Spring, Yellowstone National Park, Wyoming, USA

832-368240 - Hiker on a trail, hot springs and snow-capped Rhyolite Mountains, Hveradallir high temperature region, Kerlingarfjoell, highlands, Iceland, Europe

832-368230 - Geothermal plant near M√Ωvatn at sunset, Nor√∞urland eystra, Nordurland, Northeast Iceland, Iceland, Europe

832-373049 - People watching Strokkur Geyser errupting, fountain, hot springs, Haukadalur, Golden Circle, Iceland, Scandinavia, Northern Europe, Europe

832-368094 - Crested Pool, a hot spring in Upper Geyser Basin, Yellowstone National Park, Wyoming, USA

832-369846 - Tourist on a boardwalk amidst the steam of the springs and geysers, Black Sand Basin, Upper Geyser Basin, Yellowstone National Park, Wyoming, United States of America, USA

832-368093 - Shell Spring, geyser, hot spring, Biscuit Basin, Yellowstone National Park, Wyoming, USA

832-368098 - Castle Geyser, Upper Geyser Basin, Yellowstone National Park, Wyoming, USA

832-375943 - Steaming geysers, Norris Geyser Basin, Yellowstone National Park, Wyoming, USA, United States of America

832-368097 - Riverside Geyser, Upper Geyser Basin, Yellowstone National Park, Wyoming, USA

832-374179 - Grand Prismatic Spring, Yellowstone National Park, Wyoming, USA

832-368318 - Sinter terraces, Hveravellir high-temperature or geothermal region, Highlands, Iceland, Europe

1173-15 - Grand Prismatic Spring, a bright turquoise pool and site of geothermal activity, with mineral rich deposits at the edge, Grand Prismatic Spring, Yellowstone National Park, Wyoming

1112-2163 - View of hot springs in the Haukadalur valley on the slopes of Laugarfjall hill, Iceland, Polar Regions

1112-2160 - The geothermal Krafla Power Station, largest geothermal power station in Iceland, located near the Krafla Volcano, Iceland, Polar Regions

1112-2159 - The geothermal Krafla Power Station, largest geothermal power station in Iceland, located near the Krafla Volcano, Iceland, Polar Regions

321-5588 - Strokkur Geysir erupting at sunrise on a freezing winter's morning against the colourful sky, Geysir, Haukardalur Valley, Iceland, Polar Regions

321-5592 - Steam rising from geothermal pools at sunrise in winter, Geysir, Haukardalur Valley, Iceland, Polar Regions

321-5589 - Steam rising from geothermal pools at sunrise in winter, Geysir, Haukardalur Valley, Iceland, Polar Regions

321-5556 - Boiling mud pools and stream at Seltun, part of the Krysuvik goethermal area on the Reykjanes Peninsula, Iceland, Polar Regions

321-5555 - The Blue Lagoon, Reykjanes Peninsula, Iceand, Polar Regions

816-6740 - Geoactive thermal pool, Wai-O-Tapu Thermal Wonderland, Waiotapu, North Island, New Zealand, Pacific