Ross Ching is very famous for making those « time lapse » clips, by adding together thousands of still photos to give, as he says, the illusion of motion. The best is to visit his website to get a better idea, and view his really cool videos creations.
I really liked his Ecclectic #2 and the way he dedicated it to « the ones who see things differently ». He has new stuff also, and explain how the whole process works.