Kronotsky volcano, Russia

Victoria Falls - Zambia, Zimbabwe

The Wave. Coyote Buttes, Arizona

Panoramic of Monterey Bay in California

Darvaza gas crater, Turkmenistan

The Cobbler, Arrochar Alps, Scotland

Cliff side Channel, Grass Valley, CA

The Reed Flute Cave in China

Uncompahgre Peak, Colorado

Bubble Pond Acadia Park

Crayfish Falls, Guadeloupe

County Fermanagh, Northern Ireland

Hume Lake, Sequoia National Forest of Fresno County, California by Lou Lu