White Pocket, Arizona

Iliamna Volcano, Alaska. Photo by Michael Melford

Dyrhólaey, Iceland

Maelstrom!

Abruzzo National Park, Italy

Tahiti, French Polynesia

A lake in the Uinta Mountains, Utah

Delicate Arch, Arches Nation Park

Sunset in Sweden

Autumn in Patagonia, Argentina.

Admirable rock formations in Varna, Bulgaria.

Lake Anna Quarter,

The Libyan Desert