Great blue hole of the coast of belize.

Lake Baikal, Russia

Stunning pic of Monument Valley. (does anyone know how this was formed?)

Fall at Zion

The sky in the ground. Yellowstone National Park

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

Colorful houses in Oia, Santorini, Greece

Jasper National Park

Lake Powell - Rainbow Bridge

Mount Ranier Sunrise

Emerald Bay, CA

Avalanche Lake, MT

Saar river, Western Germany.