Add Yahoo as a preferred source to see more of our stories on Google. Super Mario running on stairs. Super Mario is the subject of an optical illusion that's been baffling the internet for years now.

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Nataliia Nesterenko via Getty Images A truly mind-bending optical illusion is attracting ...

Optical illusions are older than you think. The first optical illusions date back to 20,000 BC and took the form of cave sculptings. Nowadays they are found all over the place – on screens, in books ...

The popularity of optical illusions is on a meteoric rise on the internet. As a result, these brain teasers are getting harder on a daily basis. If you prefer challenges, we have an appropriate ...

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