People are on the roof or on the ground?
Click here for a larger picture.

This drawing is from M. C. Escher. Click here for more of Escher.

Stare at the center "+" for 10 seconds. Do you still see the color dots? Where did they go?

You should see a man's face and also a word...
Hint: Try tilting your head to the right, the world begins with 'L'

Is this possible!?!

If you take a look at the following  picture , let me tell you ... it is not animated.  
Your eyes are making it move.  
To test this, stare at one spot for a couple seconds and everything will stop moving.  
Or look at the black center of each circle and it will stop moving.  
But move your eyes to the next black center and the previous will move 
after you take your eyes away from it....  Weird.

Keep staring at the black dot. After a while the gray haze around it will appear to shrink

Is the left center circle bigger? No, They Are The Same Size

Scroll the page up and down and slowly

Scroll the page up and down and slowly. No, it is live!!!!

More Illusions

www.liquidgeneration.com/content/a55hat.aspx?cid=236

http://www.ritsumei.ac.jp/~akitaoka/index-e.html

http://www.grand-illusions.com/opticalillusions

Escher Art collection: http://home.comcast.net/~eschermc