Goreme, Turkey

Northern Lights over Tallinn

Yamdrok-tso Lake, Tibet.

Pololu Valley, Hawaii Island

Tree Tunnel, Sena de Luna, Spain

Great Sand Dunes National Park and Preserve

Stevens Arch, near the mouth of Coyote Gulch, Utah.

Eagle Lake, near Lake Tahoe, California

Perito Moreno Glacier, Los Glaciares National Park, Argentina

Washington Coast

Toketee Falls, Douglas County, Oregon

Foggy Field

Autumn in Patagonia, Argentina.