Don't believe it? Try opening up the image in Paint or another image editor and put the 2 tiles side by side.
If you move away from the center you can see the circle start to move.
I bet you get this one wrong!
We'll give you mad props if you can figure out how many black dots there are.
Here is another one that will make your eyes fall out of your head.
Did you study geometry in High School? How is this possible?
Try to say the color and not the word.
Slowly move away from the screen. Does anything happen?
Is this a huge bird or some guy out fishing?
This is a cool picture done by a good artist.