Check out these great optical illusions.
How is this even Possible??
Are the two lines on the above image curved or straight? Answer: they are straight. Your eyes are deceiving you.
If you take a look at the picture above it appears animated. But guess what? It is not animated. Your eyes are making it move. To test this, stare at one spot for a couple of 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 circle will begin to move again just after you take your eyes away from it.... Weird.
In the image above you should see a man's face and also
a word... Hint: Try tilting your head to the right, the
word begins with 'L'
Do you see gray areas in between the squares? Now where did they come from?
The words above seem to be ready to take flight? Watch out!
Where does one set of legs end and the next begin?
An impossible fence!