Artist's Point, Monument Valley, Arizona

Clear Creek Metro Park, Ohio

Bimmah Sinkhole, Oman

Volcano eruption as seen from space.

Image Lake and Glacier Peak, WA

Emerald Lake in British Columbia, Canada

Ayada Maldives, Gaafu Dhaala Atoll, Maldives

Stormy dawn on the Kalapana lava flows, HI.

Chilkoot Lake. Haines, AK

Stradbroke Island, Queensland

Darvaza gas crater, Turkmenistan

Carlsbad Caverns

São Miguel, Azores, Portugal