The coastline of Lake Urmia, in Iran.

Sherbrooke Lake, Yoho National Park, Canada

Seventy Islands, Palau

Badlands, SD

Ngoronggoro crater, Tanzania

Old Man's Cave - Hocking Hills, Ohio

Grand Canyon Walls

The Karavanks as seen from Zell - Austria

Underwater river

Fountain Paint Pot in Yellowstone National Park, Montana

West Virginia

Green River Overlook, Island in the Sky, Canyonlands, Utah

Brandy Creek Cascades, Whiskeytown, California