While optical illusions often have a mind-bending effect on me, I've never given much thought to how they affect our furry friends – but of course, someone on the internet has. Testing their feline ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Martin Doherty / Radoslaw Wincza We love a good optical illusion here at Creative Bloq.

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 ...

Scroll down below to check these creepy photos of optical illusions out for yourself, and share your own stories in the comments! Discover more in 22 Times Optical Illusions Almost Gave People A Heart ...

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 ...