Check out the latest from the illusionist extraordinaire Brusspup. Here, he demonstrates that looks can be deceiving:
The technique is called anamorphosis -- the image is distorted and elongated so that it appears natural from a certain angle.
Brusspup adds to the illusion by placing the photo-realistic images alongside every day objects and then using video to reveal the perspective change in real time. A very cool video.
See more of Brusspup's illusions on his Youtube channel.