Illusion #30 - Piano illusion

Image Credit: Shigeo Fukuda

illusion #2 - Impossible Shelves Illusion

This classic illusion consists of a series of shelves attached to a wall, but exactly how many shelves are there ? Try counting them from the left and then from the right, are they the same ?

Illusion #1

This well used optical illusion also sometimes referred to as a "blivet" is an impossible shape consisting of three prongs but with only two connecting segments.