Optical illusions (sometimes called also visual illusions) are cool images perceived in a manner that differs from objective reality. What the human eye sees is interpreted by the brain in a way that contradicts physical measurement of the source image.



You can find several types of cool optical illusions on this site all sorted into detailed categories located below and in menu on the right side as well. They are suitable not only for adults but also for kids.

Illusion of the Day This video will blow your mind. It includes great real life applications of illusions that will trick your eyes.





Warm Up Your Brain Can you find all 5 Y's in this picture?

I assure you that they are there. Take a closer look.







Here are the 5 Y's circled if you could not find them.

Red Dot Only a few people can see an image hidden in this eye test. If you don't see it at first, then relax, move back and forth. Give it some time. Once you see it, don't forget to challenge your friends.







There is a horse hidden. Credit goes to Jack O'Neil from Playbuzz.com

Brick Wall Visual Illusion Yet another cool picture that baffled Internet. It seems like a regular wall but there is something between the bricks and it's not a stone. Once you see it, it's hard to unsee it.

Hint: Smokers might have an advantage here.







There is a lighted cigar.

You may start with Face Illusions >>