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.


Now let's start with a brain warmer.

Can you find all the 5 Y's in this picture

Cc lalasticlala

Only a few people can see the image hidden in this eye test. But if you don't see it at first, then relax, move back and forth. Give it some time

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.

FACE ILLUSIONS

Face Illusions are ambiguous images which exploit similarities between two or more distinct images. They are also known as reversal images, puzzle images and perceptual rivalry.

Don't forget to step back, turn the image, and focus in order to be able to see things hidden in the images.

11 FACES

There should be 11 faces on this picture. Average people see 4-6, sensible 8-10. The best see all 11, schizophrenics and paranoids 12 and more. And you? (don't take this one too seriously, I have even heard that there are 13 faces)

And this

You think the face illusions are cool.
Now let's look at more cooler ones

These are Animal illusions
They are equally awesome

Now I need you guys to help me with this. Because I've tried but still can decipher it.

Help me look for the HIDDEN TIGER

And this

Now that we're done with that lets move on to more optical illusions.

These are IMPOSSIBLE OBJECTS.

Impossible Objects really get us chasing our tail. Our brain tries to do its best usually, however, there are instances when it fails to process correctly what the eye sees.

And this

Now lets mobe on to WORD ILLUSIONS

Word Illusions often require finding a new perspective to look at the image. Stepping back a bit might help not only when looking at these pictures but it is also a good way to solve other problems.
There is also another trick how you can read the hidden words. Scroll this page down and up again a few times while looking at a specific picture.
I hope that helps you to decipher all the messages.

And these

Please don't get scared

Scary Optical Illusions are images where creepy things like skulls are hidden.
2 different things can be found in the same picture. You should see another image if you look at each illusion from distance and another one when you look just normally.
Happy Halloween

Can you find all the animals in this head

OK I saw the mouse easily in this one

Art illusion is bae

These 3D art work on the sidewalk is just mind blowing

And this

GIRL

Stare at the red dot on the girl's nose for 30 seconds. Then look at the ceiling (or any white surface) and blink really quickly a few times. You will be amazed to see colorful girl.

Yeah

IDENTICAL COLORS

Surface color of both A and B parts is identical. Just use a finger to cover the place where both parts meet and you'll see.

POGGENDORF ILLUSION

Which line is a continuation of the black one - the blue or the red line? If you guess that it's the blue line then you are wrong. Take a paper or a ruler to verify that. Human brain very poorly interpretes the path of diagonals. (by Johann Christian Poggendorff)

STRAIGHT DICE

All the dice are perfect squares. Switching of black and white color is just tricking us into seeing bent lines although all the lines are straight.

More line illusion

Now these are cool sidewalk 3D images.

Thumbs up to these artists

Wish I was this talented

More 3D illusions

PHOTO ILLUSIONS

Photo Illusions are creative ways to confuse your mind and create false perception of things that don't exist. There are tons of funny photo illusions out there ranging from exploiting false perspective (eg. catching sun in hands during sunset, holding the tower of Pisa etc.) to paintings on walls making the impression that there is no wall but rather we see what is inside the building.

The mentioned paintings are actually called "trompe l'oeil", which comes from French and means "deceive the eye". You might have seen such murals fooling us into seeing 3D scenes which are painted on a regular flat wall. It's funny how we like to be tricked.

And these

Okay let's just have fun with these

And these

Two more

I see a cow in the second photo.