Optical illusions have recently sent the internet into a tizzy, as they get our brain to exercise, and can be the perfect test of our observational skills and keen eye. They are also super fun to ...

Optical illusions are the latest trend on social media. These brain teasers allow users to engage their brains in a fun manner. The latest challenge to go viral on Reddit asks users to find two kids ...

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 ...