Mt. Hood from 20,000 feet

Bend in Alpens

Hang son doong, Vietnam

Glacier Bay National Park, Alaska

Olympic National Park, Washington

Seventy Islands, Palau

The Fairy Pools on the Isle of Skye, Scotland

Iceland

Above the Clouds - Smoky Mountains

Erosion on the slopes of a volcano near Ankisabe, Madagascar

Pikes Peak, Colorado

Ayada Maldives, Gaafu Dhaala Atoll, Maldives

Admirable rock formations in Varna, Bulgaria.