Lol, I like this optical illusion
Interesting. Very Escher-esque.
Of course, there's always: this one. LOL!
I found these ones just today. I find illusions very interesting. Makes me wonder and awe about how our brains work.
that's pretty cool haha!
i like the one "traveller" posted - very funny. as for the first, if you pause the swf, you can see the file is simple a short animated clip which repeats over and over again. very tricky stuff.
Star Wars Fanatic
These are pretty cool