While new optical illusions go viral all the time, here are some of the most famous illusions that have kept us scratching our heads for years.

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So, how was the challenge? So, how many faces were you able to spot in this Optical Illusion? There were a total of 14 faces.

Think you can trust your eyes? Think again. What feels undeniable at first glance is sometimes a surprise, an illusion, or an ...

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture. Tom has a Master's degree in Journalism. His editorial work ...

Everyone loves an optical illusion — even if they leave us completely stumped — and they're all around us in the natural world. From an underwater waterfall in the Indian Ocean to a surrealist scene ...

Woman films cooking tutorial and accidentally creates optical illusion. A home chef was just trying to share a Taco Bell ...

Optical illusion puzzles are known to be fun and fascinating brain challenges that are designed in such a manner that they ...

Most people use the terms “optical illusion” and “visual illusion” interchangeably, much like “fluid” and “liquid” or “sofa” and “couch” are synonyms. At first glance, this might be seemingly pedantic ...