Reed Flute Cave, China

A bear on the bank of the Geizernaya (geyser) river. Russia, Kamchatka

A farmer walks past a terrace of codonopsis pilosula, a traditional Chinese medicine also known as dang shen, in Min county, Gansu province

Autumn in Adirondacks, New York

Uncompahgre Peak, Colorado

Old Man's Cave - Hocking Hills, Ohio

Bull of the Woods Wilderness, Oregon

First snow of the season today at the Maroon Bells - Aspen, Colorado

Mount Gilbert

Soufrière, St. Lucia, The Caribbean

Huacachina, Peru

Routeburn Track, New Zealand

Storm clouds near Palos Verdes Peninsula, CA