Natural Bridges State Beach - Santa Cruz, CA

Ngarchelong, Palau

Iliamna Volcano, Alaska. Photo by Michael Melford

Batu Caves, Kuala Lumpur, Malaysia

Bow Lake, Banff National Park

Rock formation in Moab, Grand Canyon, Utah

Moldoveanu peak in Romania

Mirror Lake, Yosemite National Park

Backwaters of Kovalam, Kerala, India.

Lake Powell - Rainbow Bridge

Stormy dawn on the Kalapana lava flows, HI.

Richardson's Grove State Park, California

St. Thomas, U.S. Virgin Islands