Can you spot the hidden butterfly in this tricky optical illusion in just 9 seconds? Test your vision and observation skills ...

A new photo claiming to be a 1,000-foot-wide UFO near the Four Corners is sending the internet into a frenzy over whether ...

Here's a fun optical illusion challenge that will tickle your brain and test your observation skills. Two images are shown ...

Discover what you see first in this optical illusion says about your personality. Whatever you see first will differ from ...

Can you spot the hidden dog? A viral kitchen illusion puzzled netizens as they struggled to find the camouflaged pup.

Thus, despite appearances, the elephant effectively has one intact leg, with the rest manipulated to create the illusion of ...

The latest image making the rounds on the r/opticalillusions subreddit is a fairly innocuous snap of two high-rise buildings.

At first glance, the image seems like a simple bunch of grapes. However, if you take a closer look, you’ll notice something ...

Optical illusions occur because of the way our brain processes visual information. The human vision system is complex but not ...

Our new optical illusion challenges viewers to spot the hidden "44" among rows of "46" and "49," but only 1 per cent with ...

A new personality test in the form of an optical illusion claims to be able to decipher which of your attributes that others ...

The book then opens out into various sections, offering readers a comprehensive breakdown of the differing types of optical illusions and the many methods used to create them. Chapters such as ...