This video shows the process of drawing a geometric optical illusion using repeating black shapes arranged in a circular ...

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

Optical illusions aren’t just fun—they’re windows into how our brains construct reality. New research reveals the specific brain circuits and neurons responsible for ‘seeing’ things that aren’t there.

Only people with really sharp eyes can find the hidden odd popcorn tub in this optical illusion within 17 seconds. Think you ...

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

Optical illusions occur naturally in different habitats and conditions across the world. Cloud formations can sometimes make it seem like there's an ocean or a UFO in the sky. Whether it is salt flats ...

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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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 ...

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 ...