This awesome piece of optical LEGO art was created by Arthur Gugick, a man who had a vision of Batman and the Joker on the same piece of LEGO art then made his vision come true.
Tilt it one way-you've got the Caped Crusader, tilt it the other way you've got Mr. Joker in all his glory.
Arthur's superheroic work has added another angle to the world of LEGO art!
Link --via Geekologie