Ben Raynes has come up with quite the unique works of art, thanks in a large part to 3D printing, in particular a MakerBot 3D printer. He creates ordinary looking paintings that actually have gears within them, allowing for the paints to move when a handle is turned. These include various scenes such as the Arc de Triomphe in Paris, and the city of Boston. Called "Landscapes In Motions", they are quite incredible creations. Read and see more at:
http://3dprint.com/70316/landscapes-in-motion-raynes

Check out the image below: