I found this one that shows how little we perceive how we actually see the world. It can be a very shocking thing to have your mind do things that it can't accept as normal, but does anyway. Bicameral, crossed over and inverted, things sometimes get confusing in the old brain.
http://web.mit.edu/persci/people/adelso ... usion.html
Check out the item listed as "More Illusions" to see how easily the minds eye makes sense of its surroundings when proper forces are put in improper conjuntions. Makes for instant changes that can't be, but the minds eye has to make sense of it, so.....
Do you believe?
Check out the pictures on the main site- Some awesome stuff!