Bourke's Luck Potholes, Blyde River Canyon, South Africa

Painted Hills, Oregon

A tree in Afghanistan

County Fermanagh, Northern Ireland

Mountains across a meadow in Stowe, VT.

Glendalough, Ireland

Webster's Fall, Ontario

Rainbow over Bora Bora

The peaks of the Geisler Mountain

Jiuzhaigou Valley, Autumn 2012, China

Hang son doong, Vietnam

Morning sun in Waimea, Kauai County, Hawaii Canyon, Kauai

Cueva de los Verdes, Canary Islands