"A drink in a glass of water seems to bend at the water line. Things aren't always where you see them."
Special goggles which distort your vision require you to train yourself to figure out how to toss the ball into a hoop which isn't actually where you would normally expect it to be.
One of the many fascinating exhibits at the Exploratorium.
Three men stand looking down on the Gates of Hell.
A man appears to be thinking while sitting at the Gates of Hell.
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