A Quiver Tree in Spitzkoppe, Namibia. Because bushmen use it's branches to make quivers, the aloe dichotoma, or kokerboom, is known as the quiver tree. It is a species of aloe indigenous to Southern Africa and parts of Southern 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.