Old Man's Cave - Hocking Hills, Ohio

Kabardino-Balkaria Alpine Reserve, Russia

Big Sur, California 2

Similan Islands of Thailand

Autumn in Adirondacks, New York

Double Rainbow at Lake Crescent, Olympic National Park

Crimean night

Tunnel Beach, Dunedin, NZ.

Aconcagua, Argentina

Mesa Arch, Canyonlands National Park - Moab Utah

Geirangerfjorden, Norway ─

Washington Coast

Turquoise ice at Lake Baikal, by Alexey Trofimov