Checkerboard shirts are your new BFF. The funky print is bold but can mesh well with your existing wardrobe. You can easily find vibey checkered prints to really get the optical illusion look going, ...

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 ...

Optical illusions play tricks on your brain and can make you see things that aren't really there, from static images swirling around the page to images that stay with you even after you look away.