This ball is on a roll. In this optical illusion, you’ll see a hand place a metal ball at the bottom of what looks like an ordinary slide. However, it immediately rolls uphill, seemingly defying the ...

Can you trust your own eyes? This video might be one strong case for a resounding, “No!” Even after the trick behind the magic is revealed, it’s hard to make your brain parse the truth. Although this ...

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 hugely popular on TikTok, and it feels like every week a new video goes viral on the app. From mind-bending mirror tricks to classic op-art puzzles, it's clear that optical ...