Volterra, Italy

The Giant's Causeway - County Antrim, Northern Ireland.

Satellite image of the Mississippi River

Blue Ice Cave, Antarctica, December 2011.

Stream at Muir Woods

Mountains of Vietnam in Paksan, Laos

Lake Coleridge, New Zealand

Stingray Bay

austria

Salt Flats of Bolivia

Glade Creek Grist Mill in West Virginia

Rainbow Bridge National Monument, Arizona, United States

Bryce Canyon, Utah