Nothing makes you more aware of your fragile grasp on reality like an optical illusion. We're just a collection of firing synapses, held together in a mobile water tank, basically. At least that's how I felt after The Dress. If you love that feeling of total disorientation, we've got some visual puzzles to get your brain juices sloshing.
How about this woman riding her flying carpet?
"Is magic real?" asks my confused brain.