SearchColor, light and patterns can all confuse our brains. For some illustrations there are no right or wrong answers but its lots of fun trying to puzzle them out.
Web Links
25 Brilliant Optical Illusions
It’s amazing how our brains work. How can pink dots suddenly turn green. This site has some good visual brain-bending illusions.
Kids Health
An optical illusion is something you recognize that actually differs from the reality of the image. Illusion comes from the Latin verb illudere meaning “to mock.”
BrainDen
This site categorizes different kinds of optical illusions from impossible objects, colorblindness tests to some great 3D pictures.
