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 ...

The popularity of optical illusions is on a meteoric rise on the internet. As a result, these brain teasers are getting harder on a daily basis. If you prefer challenges, we have an appropriate ...

Optical illusions are not just a fun game. This optical illusion will test your brain's ability to spot hidden patterns. How good are you at noticing subtle anomalies?

It's not just humans who notice optical illusions; certain animals do too, and they often use it to their advantage. When you purchase through links on our site, we may earn an affiliate commission.