Here's bunch of optical illusions, among the best I have ever seen.
http://www.ritsumei.ac.jp/~akitaoka/saishin-e.html
Prepare to cross your eyes.
Actually, these are more like brain fucks... my head now hurts, and I think I pulled an eye muscle while staring at these things.
Ouch. (Score:2)
dupe (Score:1)