CRYSTAL CAVE Svínafellsjökull Skaftafell, Iceland

The beginning of fall in Northeast Ohio

St. Thomas, U.S. Virgin Islands

Laguna de los Tres and Fitz Roy, Argentina

Qilian County, China

Zhangjiajie National Forest Park, China

Dragon Falls, Venezuela

Cougar Mountain, Washington

A valley in Iceland

Five dead trees in front of a massive sanddune

Valle Los Gigantes, Córdoba, Argentina

Grand Canyon view

Fall colors at a stream near Milford, New Hampshire.