Amazing Optical Illusions That Will Play Tricks on Your Mind

Science and Engineering

3. Cafe Wall Illusion

YouTube/Ivana Vulic Dinic
YouTube/Ivana Vulic Dinic

Dr. Richard Gregory first observed this illusion in the tiles on the wall of a Bristol cafe (hence the name). The alternating light and dark bricks are staggered and the gray “mortar” lines separate the layers. But while the lines may look as if they curve, they are actually straight across and parallel.


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