33 Illusions That Will Bend Your Mind

5. Café Wall

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Are the horizontal lines crooked? Or parallel? The black boxes change our perception and make us think the lines are crooked in this Café Wall illusion.

6. Hering

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The Hering illusion is named for Ewald Hering who published the illusion in 1861. He showed that straight, parallel lines appear bent if there are background lines radiating outward.