I love the fierceness of Nature as much as it's quiet beauty... a tornado in Namibia

This is not a tornado in Namibia. Where is the flying sand? This is the shadow cast by the edge of a sand dune in Namibia. The picture was entered in the Italian National Geographic photo contest by Francesco Middei.

by vivian maier

The Secret City of Vivian Maier Photos from one of America's greatest unknown street photographers. —Photographs by Vivian Maier/John Maloof Collection. Text by Alex Kotlowitz