Blue Ice Cave, Antarctica, December 2011.

Lower Lewis River Falls, Washington

Maple Trees, Stouffville, Ontario

Sidi Bou Said, Tunisia

Irish Moss Bridges

Bernina Express at highest point

El sótano de las golondrinas, San Luis Potosí, México

Stevens Arch, near the mouth of Coyote Gulch, Utah.

Path at a Irish Campsite

Huanglong National Park, Sichuan Providence, China

View in Torres del Paine National Park, Chile

Mayon Volcano's Perfect Cone, Philippines

Mount Damāvand, Iran -