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

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From colour-changing fire trucks to 'The Dress', many optical illusions have baffled the internet over the years. Now, a scientist from Harvard Medical School has discovered an illusion that might be ...

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

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.

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 ...

In this Ebbinghaus illusion of relative size perception, the orange circle on the left looks bigger than the one on the right - but it is actually 10 per cent smaller. In a new study, medical imaging ...

Feed-perfect illusion rooms, puzzling hands-on interactive installations, perplexing holograms and optical tricks are just a few of the more than 50 attractions the Dallas Museum of Illusions has ...