Praia da Adraga beach, Portugal -

A gorge in Thailand.

Erosion on the slopes of a volcano near Ankisabe, Madagascar

Son Doong Cave, Vietnam. The largest cave in the world.

Key West, Florida

As Requested- Allegany State Park, NY - Fall 2011 -

Kaieteur Falls - Guyana, South America

Natural terrace pool, Pamukkale, Turkey.

Lake Anna Quarter,

Aldeyjarfoss in Skjálfandafljót, Iceland

Lightning flashes around the ash plume of the Puyehue-Cordon Caulle volcano chain near Entrelagos, Chile.

Mountains and lake in Lauenen Switzerland

Mt. Wilbur in Glacier National Park