I absolutely love optical illusions. They're magic tricks that are played on your eyes.

What I didn't know is that the National Correlate Society names their favorites. The “Dynamic Ebbinghaus” was named the illusion of the year. Here's the winner and some of the other finalists:

The Dynamic Egginghaus -- Watch the center circle. Believe it or not, it never changes its size.

A Turn In The Road -- Keep pointing on the road that looks different.

The Pigeon Neck Illusion -- Watch the pigeons move their heads like real pigeons move their necks.

The Infinite Maze -- It's like pac-man only it's the maze that never ends....It just goes on and on my friend.

Impossible motion -- Magnet-like slopes.