Do you think you have perfect vision? Here’s a quick way to find out. This optical illusion is designed to test how sharp ...

A stereogram optical illusion is a fascinating visual puzzle that hides a 3D image within a 2D pattern. At first glance, it appears to be a random collection of repeating designs or colourful dots.

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 ...

At first glance, this black-and-white zigzag pattern might look like nothing more than a dizzying wall of lines. But hidden within its hypnotic design lies a surprising image that tests how quickly ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Kristian Bell via Getty Images An artist has gone viral on TikTok for his optical ...

So, if you think that your IQ is higher than 100% of people, then by using your sharp Hawk-Eye Vision and observation skills and also using your 140+ IQ level, could you Snipe the Hidden Grasshopper ...