Rock formations against a clear blue sky with mountains in the background, showcasing natural erosion and geological features in the Teide National Park,UNESCO World Heritage Site, Tenerife, Canary Islands, Spain, Atlantic, Europe

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

Grand Prismatic Spring, Midway 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

Grand Prismatic Spring and Excelsior Pool behind, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

People looking at view of Stromboli island from Gran crater rim, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe

Tree at the edge of the crater, Grand Canyon, Arizona, USA, North America

Firehole River in Yellowstone. Waterfalls of hot water.

Excelsior Geyser Crater near Grand Prismatic Spring, Yellowstone National Park.