Take this visual test. I bet you do!
This is not what it appears to be.
This will bug out your eyes.
This is a pretty cool illusion made from wood.
Focus on the middlle and you shall see the circles start to move.
These lines are actually parallel even though they appear to curve.
Stare at this image close up for 60 seconds then lean back and close your eyes. You will see an image of Jesus. This one is freaky.
The square in the middle appears to be curved but its perfectly straight.