Try some of these tricks on your friends.
What is going on in these pictures?
Can you figure out what's going on in each picture? Remember, the "pause" button is your friend!
Don't believe it? Try opening up the image in Paint or another image editor and put the 2 tiles side by side.
Is this a perfect square or not. We think it is.
KST thinks this is a spiral. Do you agree?
This is a pretty cool illusion. All the figures are actually the same size.
These are so simple but always so amazing to see.
This T-Rex's head and eyes seem to follow you wherever you go.