Grand Prismatic Spring, Yellowstone National Park.

Rio Celeste, Costa Rica

Iliamna Volcano, Alaska. Photo by Michael Melford

Satellite image of the Mississippi River

Drakensberg Mountains, Southern Africa

Chelyabinsk, Russia

Great Ocean Road, Australia

King's Canyon, Australia

Cirque Peak

Kauai, HI Waterfalls

Upper Antelope Slot Canyon, Arizona

Diablo Lake in the North Cascade National Park

Reed Flute Cave, China