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View of outside thermal spa at Szechenhu Thermal Bath in winter, Budapest, Hungary, Europe
People bathing in Gellert Thermal Baths, Budapest, Hungary, Europe
Mount Fuji (3776m), Owakidani geothermal park, Hakone, Honshu Island, Japan, Asia
BlueLagoon thermal pool, Iceland
The Lady Knox Geyser in the Waiotapu Thermal Area at Rotorua, North Island, New Zealand, Pacific
Castle Geyser, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America (U.S.A.), North America
Guests enjoy the thermal waters of the Blue Lagoon (Blaa Ionid), Iceland, Polar Regions
Hot Water Beach on the east coast of the Coromandel Peninsula, where thermal waters rise up from below sand, North Island, New Zealand, Pacific
Castle and Sawmill Geysers in eruption in Old Faithful Geyser Basin in winter, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America (U.S.A.), North America
Guests enjoy the thermal waters of the Blue Lagoon (Blaa Ionid), Iceland, Polar Regions
View of outside thermal spa at Szechenhu Thermal Bath in winter, Budapest, Hungary, Europe
Blisters measuring about 10 cm across in boiling mud pool, Mud volcano, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America (U.S.A.), North America
Clouds of steam rise as people swim in the Blue Lagoon thermal pool, Iceland
Steam and bubbling mud pools in thermal area, Rotorua, South Auckland, North Island, New Zealand, Pacific
Echinus Geyser, erupts every hour in Norris Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America (U.S.A.), North America
Mataranka thermal pool in the outback of the Northern Territory, Australia, Pacific
Thermal pool of Bagno Vignoni, Val d'Orcia, Siena province, Tuscany, Italy, Europe
Thermae of Bagno Vignoni at dusk, Val d'Orcia, Siena province, Tuscany, Italy, Europe
Geysers at Sol de Manana, Salar de Uyuni, Bolivia, South America
Buffalo beside Firehole River in winter in Midway geothermal basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America (U.S.A.), North America
The Kamal factory in Bangalore, Karnataka, India that manufactures solar thermal panels for heating water.
The Kamal factory in Bangalore, Karnataka, India that manufactures solar thermal panels for heating water.
A workman fitting solar thermal panels for heating water, to a house roof in Ambleside, Cumbria, England, United Kingdom, Europe
A workman fitting solar thermal panels for heating water, to a house roof in Ambleside, Cumbria, England, United Kingdom, Europe
A workman fitting solar thermal panels for heating water, to a house roof in Ambleside, Cumbria, England, United Kingdom, Europe
Workers washing the heliostats to maximise reflective power at the Ivanpah Solar Thermal Power Plant in California''s Mojave Desert is currently the largest solar thermal plant in the world. It generates 392 megawatts (MW) and deploys 173,500 heliostats that reflect the suns rays onto three solar towers. It covers 4,000 acres of desert.
Workers washing the heliostats to maximise reflective power at the Ivanpah Solar Thermal Power Plant in California''s Mojave Desert is currently the largest solar thermal plant in the world. It generates 392 megawatts (MW) and deploys 173,500 heliostats that reflect the suns rays onto three solar towers. It covers 4,000 acres of desert.
Workers washing the heliostats to maximise reflective power at the Ivanpah Solar Thermal Power Plant in California''s Mojave Desert is currently the largest solar thermal plant in the world. It generates 392 megawatts (MW) and deploys 173,500 heliostats that reflect the suns rays onto three solar towers. It covers 4,000 acres of desert.
The Kamal factory in Bangalore, Karnataka, India that manufactures solar thermal panels for heating water.
Solar photo voltaic panels and solar thermal panels providing electricity and hot water for a 16th century farm house on Bodmin Moor, Cornwall, England, United Kingdom, Europe
Solar thermal panels for heating water with solar photo voltaic panels on the rooftops of a tea house in the Himalayan foothills, Nepal, Asia
Solar thermal panels for heating water with solar photo voltaic panels on the rooftops of a tea house in the Himalayan foothills, Nepal, Asia
Solar photo voltaic panels and solar thermal panels providing electricity and hot water for a farm house on Bodmin Moor, Cornwall, England, United Kingdom, Europe
Solar thermal panels for heating hot water with solar PV electric panels behind on a house roof in Ambleside, Lake District, Cumbria, England, United Kingdom, Europe
Thermal pools at Geysir with Strokkur geyser erupting in the background, Geysir, southwest area, Iceland, Polar Regions
Solar thermal panels for heating hot water with solar PV electric panels behind on a house roof in Ambleside, Lake District, Cumbria, England, United Kingdom, Europe
Thermal pools at Geysir, southwest region, Iceland, Polar Regions
Solar thermal panels for heating water on the rooftops of Kathmandu, Nepal, Asia
Usa, South West, Wyoming, Yellowstone National Park, The Large Geyser At Work
Usa, South West, Wyoming, Yellowstone National Park, The Large Geyser At Work
Melt water on the Greenland ice sheet near camp Victor north of Ilulissat, Greenland, Polar Regions
Thermal hot springs near Nadi on Fiji, Pacific
Embros Thermal springs on the Island of Kos. Greece
A thermal imaging camera shows heat loss from a hot water pipe, United Kingdom, Europe
A thermal imaging camera shows heat loss from a hot water pipe, United Kingdom, Europe
Embros Thermal springs on the Island of Kos. Greece
Snowy landscape at Yellowstone National Park, USA
Strokkur geyser erupting, in the Geysir hot springs area, Haukadalur geothermal area, Southwest Iceland
Strokkur geyser erupting, in the Geysir hot springs area, Haukadalur geothermal area, Southwest Iceland
Young woman in Norris Geyser Basin, Yellowstone National Park, USA
Norris Geyser Basin in Yellowstone National Park, USA
Steam vents rising from river in Yellowstone National Park, USA
Young woman in Norris Geyser Basin, Yellowstone National Park, USA
Norris Geyser Basin in Yellowstone National Park, USA
Norris Geyser Basin in Yellowstone National Park, USA
Person watches fumaroles in Upper Geyser Basin, Yellowstone National Park, USA
Young woman in Norris Geyser Basin, Yellowstone National Park, USA
Norris Geyser Basin in Yellowstone National Park, USA
Norris Geyser Basin in Yellowstone National Park, USA
Iceland, Reykjavik, The pearl, Huge hot water tank on a hill
Young couple bathing in hot water on the beach, Coromandel Peninsula, North Island, Oceania
People bathing in hot thermal water, Blue lagoon, Grindavik, Reykjanes, Iceland, Europe
Young couple bathing in hot water on the beach, Coromandel Peninsula, North Island, Oceania
Pohutu Geyser, Rotorua, Whakarewarewa area, Rotorua, North Island, New Zealand
Champagne Pool, Waio-tapu crater lake, Geothermal area near Rotorua, North Island, New Zealand
Cupola, staircase, La Perla, Reykjavik, Iceland, Europa
Thermal area Seltunn at lake Kleifarvatn, Reykjanes peninsula, Iceland, Europe
Open-air area of the Gellert Baths, People in the open-air area of the Gellert Baths, Buda, Budapest, Hungary
View inside the Gellert Baths, View inside the Gellert Baths, Buda, Budapest, Hungary
Open-air area of the Gellert Baths, People in the open-air area of the Gellert Baths, Buda, Budapest, Hungary
Shower heads with drops of water, Therme Meran, Thermal spa, Merano, South Tyrol, Italy
Four people enjoying the water of the thermal bath, Bagno Vignoni, Tuscany, Italy
People bathing in a thermal outdoor pool, Alpen Therme Gastein, Bad Hofgastein, Gastein Valley, Salzburg, Austria
Inside the Gellert Baths, People swimming in the Gellert Baths, Buda, Budapest, Hungary
Outdoor pool in Therme Meran, salt water pool and thermal spa, Merano, South Tyrol, Italy
Hot springs and steam from the thermal springs, Waikite Valley Thermal Pools, Rotorua, North Island, New Zealand
Open-air area of the Gellert Baths, People in the open-air area of the Gellert Baths, Buda, Budapest, Hungary
Thermal spring hotel Kurtur, Spa, Pamukkale, Turkey
Puente del Inca, rock arch and old thermal bath of the sulphur spring above the Rio de las Cuevas, near Uspallata, Mendoza Province, Argentina, South America
Hot spring, sinter terraces, Hveravellir high-temperature or geothermal region, Highlands, Iceland, Europe
Blue water pool, Bl√°hver hot spring, Hveravellir high-temperature or geothermal region, Highlands, Iceland, Europe
Hiker on a trail, hot springs and snow-capped Rhyolite Mountains, Hveradallir high temperature region, Kerlingarfjoell, highlands, Iceland, Europe
Blue water pool, Bl√°hver hot spring, Hveravellir high-temperature or geothermal region, Highlands, Iceland, Europe
Steaming creek, hot springs and Rhyolite Mountains, Hveradallir high temperature area, Kerlingarfjoell, highlands, Iceland, Europe
Tourists watching steam and a water spout, Strokkur geyser, backlit, Haukadalur valley, Golden Circle, Su√∞urland, Sudurland, southern Iceland, Iceland, Europe
Tourists watching a steam and water column, Stokkur geyser against the light, Haukadalur Valley, Golden Circle, Su√∞urland, South Iceland, Iceland, Europe
Hiker on a trail, hot springs and snow-capped Rhyolite Mountains, Hveradallir high temperature region, Kerlingarfjoell, highlands, Iceland, Europe
Thermalpark Aqualuna of the hot spring Olimia - thermal bath in Podcetrtek - Slovenia
Elisenbrunnen, classicistic column porch, Aachen, NRW, Germany
Break of dawn at the waterside of Yellowstone Lake, Yellowstone National Park, Wyoming, USA, United States of America
Thermal spring in Saturnia with sulphur-containing water of the Monte Amiata Manciano Toskana Italien
Natural thermal springs Polloquere, salt lake Salar de Surire, national park Reserva Nacional Las Vicunas, Chile, South America
Tettuccio, thermal spa in an Art Nouveau style, colonnade and pool, Montecatini Terme, Tuscany, Italy, Europe
Tabacon, hot springs near Arenal Volcano, Costa Rica, Central America
Geothermal power plant, Latrabjarg, Iceland, Europe
Crypt, remains of Roman baths from the 4th century, interior, Church of Saint Demetrius or Hagios Demetrio, Thessaloniki, Chalkidiki, Macedonia, Greece, Europe
Sulphure formations, Dallol, Danakil Depression, Ethiopia, Africa
Blahver, blue spring, the most beautiful blue water pool in Hveravellir in the Highlands, in front of Oeskjuholt, a steaming calc-sinter mound which looks like a mini volcano, below a rainbow, Hveravellir, Iceland, Europe
Blahver, blue spring, the most beautiful blue water pool in Hveravellir in the Highlands, in front of Oeskjuholt, a steaming calc-sinter mound which looks like a mini volcano, below a rainbow, Hveravellir, Iceland, Europe
A Japanese Macaque, Snow Monkey (Macaca fuscata) in a thermal pool, Joshinetsu Kogen National Park, Japan, Asia