Lenticular Clouds Near Estes Park, Colorado

Shasta Lake from air

Lightning flashes around the ash plume of the Puyehue-Cordon Caulle volcano chain near Entrelagos, Chile.

Drakensberg, South Africa

Beautiful view on Santorini, Greece

Yellowstone Canyon, WY

Mayon Volcano's Perfect Cone, Philippines

Athabasca Glacier at night, Jasper National Park

Coco's Island - Costa Rica

The Fairy Pools on the Isle of Skye, Scotland

The Reed Flute Cave in China

Sunset in Israel behind a wrecked ship

Blue Ice Cave, Antarctica, December 2011.