Natural limestone structures at Nambung National Park, Western Australia

The Giants Causeway, North Ireland

Crooked Forest; West Pomerania, Poland

Kings Canyon National Park, California

Another view of Crater Lake OR: Featuring the Castle

Kananaskis Country AB, Can

Peering through Fjarðrárglúfur Canyon, Iceland

Rocky Mountains National Park, Colorado

Cloud Bank Rolling Over Grand Tetons by Monika

Vera Falls of Malinao, Albay, Philippines

Lake Powell, UT.

Maroon Lake, Aspen, Colorado

Colmar, France