Category: Size and Distance | Add Comment (5)

Leaning Tower Illusion

These two images of the Leaning Tower of Pisa are identical but if you look at them closely you'll notice that the tower on the right appears to be leaning more than the one on the left even though there is no difference between the two. This illusion won the Best Visual Illusion of the Year contest in 2007.

Image Credit: Frederick Kingdom, Ali Yoonessi and Elena Gheorghiu

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Comments (5)

Posted by William on March 1, 2010

You are comparing the edges which face each other. The left edge of the right image slopes more than the right edge of the left image.

Posted by mer on February 13, 2010

they look like different colored blue backrounds, maybe it has to do with that???

Posted by Steph on December 29, 2009

This is weird... I'm not sure how it works? Steph Jesus Optical Illusion

Posted by Indra on December 15, 2009

very tricky illusion..really nice one..

Posted by stan on December 10, 2009

this is not true...is it? i dont think so :P

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