Yellowstone in Wyoming sits atop one of the planet's largest volcanic systems, and its restless heat drives geysers, bubbling mud pots, and steaming hot springs.
Watch Old Faithful send its plume skyward on a remarkably reliable schedule, then explore the surrounding basins of rainbow-rimmed thermal pools.
Where to find it
More nature
Ama Dablam
Nepal
Angel Falls
Venezuela
Atacama Desert
Chile
Cerro Torre
Argentina
Dead Sea
Israel
Denali
United States
Grand Canyon
United States
Iguazu Falls
Argentina
Kaieteur Falls
Guyana
Kirkjufell
Iceland
Lake Bogoria
Kenya
Matterhorn
Switzerland
Milford Sound
New Zealand
Myvatn Lake
Iceland
Niagara Falls
Canada
Pamukkale Terraces
Turkey
Plitvice Lakes
Croatia
Preikestolen Cliff
Norway
Salar de Uyuni
Bolivia
Sossusvlei
Namibia
Uluru
Australia
Victoria Falls
Zimbabwe
Wadi Rum
Jordan
Yosemite Falls
United States