It's a site I'm visiting from time to time .... The headline says it all :) Here's the link for it's optical illusions (chances are that you've already seen them, but there's a lot of other stuff on that site ....) <a href="http://www.blifaloo.com/illusions/index.php" target="blank"><u>http://www.blifaloo.com/illusions/index.php</u></a>