Mt. Sneffels, CO by Wayne Williams

Admirable rock formations in Varna, Bulgaria.

Somewhere in Berner Oberland, Switzerland

North Stradbroke Island, Australia -

Tufas at Lake Mono, California

Slave's Edge near Leitisvatn in the Faroe Islands

Mountain View, California

Garmisch-Partenkirchen, Germany

Stormy skies in Dublin, VA

An ancient tree on the rim of Oregon's Crater Lake at twilight

King's Canyon, Australia

Grand Prismatic Spring, Yellowstone National Park.

Crimean night