
"An optical illusion is characterized by visually perceived images that are deceptive or misleading. The information gathered by the eye is processed by the brain to give a percept that does not tally with a physical measurement of the stimulus source." --From wikipedia.
This list allows you to view and rate a few examples of several different types of illusions.
Note: the pic above is an example of the Trompe-l'œil illusion and the artist is Julian Beever and I would highly recommend visiting his website: http://users.skynet.be/J.Beever/
1 = Weak
5 =
Amazing!