Saint Mary Lake, Glacier National Park, Montana

Great Falls, Virginia

Kaieteur Falls, Guyana

Green canyons of Iceland

Taken near the end of De Lacy Creek, Yellowstone

Balls Pyramid - The worlds tallest sea stack, at 562 metres, in Lord Howe Island, New South Wales, Australia.

Wildflowers of Alaska

Sunrise over the Superstition Mountains in Arizona

Taughannock Falls, NY

Athabasca Glacier at night, Jasper National Park

Onondaga Cave, Missouri

Reflection lake

El sótano de las golondrinas, San Luis Potosí, México