Lake Anna Quarter,

Badlands, South Dakota

Medicine Lake in Glacier National Park

Abby Aldrich Rockefeller Garden, Maine

Zion National Park, Angels Landing trail

Bernina Express at highest point

Caddo Lake, Texas

A desert in the middle of Iran. Photo by Arash Karimi

Gaiola Bridge, Naples, Italy

New Melones Lake, Sonora, CA

Hill fortress of Sigiriya, Sri Lanka

Colgate University in the fall

Five dead trees in front of a massive sanddune