Optical illusions are the latest obsession on the internet. Thousands of people who prefer challenges that improve concentration have made these viral brain teasers a favorite pastime. Do you like to ...

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 ...

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 ...

Optical illusions are great fun, and they fool virtually everyone. But have you ever wondered if you could train yourself to unsee these illusions? Our latest research suggests that you can. Optical ...

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 ...

Have you ever looked at two circles of exactly the same size and sworn one was larger? If so, your eyes have been tricked by the Ebbinghaus illusion, a classic example of how context can shape what we ...

All over the world, there are naturally occurring optical illusions that captivate spectators. Cloud formations can sometimes make it seem like there's an ocean or a UFO in the sky. Whether it is salt ...

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 ...