CRYSTAL CAVE Svínafellsjökull Skaftafell, Iceland

Tufas at Lake Mono, California

Cappadocia, Turkey

Snow on Sandstone Monocline, West of Kayenta, Navajo Nation, Arizona

Geiser Black Rock Desert, Nevada

Sunset at Lake Tahoe, Sierra Nevada

Pikes Peak, Colorado

Yushan National Park, Taiwan

World's clearest lake, Blue Lake, Nelson, NZ

A gorge in Thailand.

Green canyons of Iceland

A hanging valley in Rocky Mountain National Park, Estes Park, CO

The base of Wind River Peak in the Wind River Range, WY