Danxia landform, Zhangye, China

Moraine Lake, Alberta, Canada

Black's Beach from the top of the cliffs, San Diego, CA

Southern China

Frozen air bubbles at Abraham Lake(Alberta, Canada)

The sky in the ground. Yellowstone National Park

Appalachian Trail, Smoky Mountains, Tennessee

At Hoover Dam, Nevada/Arizona

Mountain View, California

Sunset in Romsdalen, Norway

Ptarmigan Lake, Glacier National Park. Via The Real Good Times blog

Lake Coleridge, New Zealand

Garmisch-Partenkirchen, Germany