Human beings are used to being on the ground, standing right side up. So when you view the world from a different perspective, such as from aerial photographs, things often don't look quite right. Minute Physics explains a common optical illusion used to make maps easier to read:
Teleportation Explained
For those curious as to the explanations of the many tools at the disposal of the magician for accomplishing miracles, this is not one of them. But very interesting nonetheless.