Can't think of any right now. But the Afghan girl is a world famous picture.I remember National Geographic went on a man hunt looking for her, if I see her picture anywhere I can tell she was the girl on the cover of National Geographic.
Although there are some well-known photos here, I disagree that they are the "top world famous". They didn't even include Migrant Mother by Dorothea Lange or one of the many iconic photos by Annis Leibovitz. The attached photo will always haunt me and think it should have been included.