Optical illusions give fascinating insight into how our brains work.
Creating illusions is a popular art form, and theres even an annualBest Illusion of The Year Contest.
Winning first prize, Japanese Professor of EngineeringDr.
Kokichi Sugiharacreated a 3D model of aSchroder Staircase.
The original, 2D version was published in 1858 by German natural scientist Heinrich G. F. Schroder.
The drawing of a staircase can appear differently, depending on where you rest your eyes.
As a result, we perceive new ambiguity, which is different from that of the original Schroeder Staircase.
Check out Sugiharas winning optical illusion below, plus some of the other top entries from the competition.