The Sphinx Observatory at Jungfraujoch, Switzerland provides stunning views of both the heavens and the earth.

Blue Ice Cave, Antarctica, December 2011.

Alpes, France

Grüner See, Austria

Lençóis Maranhenses, Brazil

A tree in Afghanistan

El sótano de las golondrinas, San Luis Potosí, México

Wizard Island at Crater Lake, Oregon

Danxia landform - Zhangye, Province of Gansu, China

Westfjords Dynjandi, Iceland

Grand Canyon Walls

Marina Bay Sands, Singapore

Los Roques, Venezuela