60 insane cloud formations from around the world [PICs]
STANDING IN A CORNFIELD IN INDIANA, I once saw a fat roll cloud (like #4 below) float directly over my head. It's a 12-year-old memory that remains fresh. There was a moment mild panic just as the cloud reached me — I thought.
99 Excellent Examples of Forced Perspective Photography
Forced perspective is a technique that employs optical illusion to make an object appear farther away, closer, larger or smaller than it actually is. It is used primarily in photography, filmmaking and architecture. It manipulates human visual percep...
50 Images from National Geographic`s 2010 Photo Contest
Breathtaking Long Exposure Photography and How to Capture...
Long exposure photo is when the camera's image sensor was exposed to light for a longer period of time than usual.
National Geographic Photo Contest 2011
National Geographic is currently holding its annual