Mind-Bending Optical Illusions

Gray Dots

If you look at the picture long enough, gray dots will start to appear at the intersections of each line, but when you try to focus on one of the gray dots, it will disappear.

First, stare at the red dot on the girl's nose for 30 seconds. Then turn your eyes to a plain surface like your ceiling or a blank wall. Blink repeatedly and quickly and you should see the same portrait in full color.

Four Perfectly Round Circles

These are four perfectly round circles, arranged from largest to smallest, but the odd angles of the boxes that make up each circles make them appear to intersect. 

Spine Drift Illusions

The middle box appears to be moving.

Kitaoka Optical Illusions

The lines appear to be moving deeper into the center of the page.

Primerose's Field

Even though this is just a checkered background, it appears to be wavy.

Bulge

The middle area appears to rise out from the screen.

Rollers

There appear to be three cylinders rotating in opposite directions of each other.

Uzumaki Ampan

The thinly gray-lined circles appear to be spirals. 

Into The Space

The image appears to descend into a black hole.

Winter Rotation

The upper-left, upper-right and lower-middle snails appear to rotate counterclockwise while the rest of the circles appear to be going clockwise.

Rotating Rays

The outer ring of rays appears to rotate clockwise while the inner one goes counterclockwise.

Pressure

The disk appears to be about to collapse.

Rotating Snakes

Each of the circles appear to spontaneously start rotating at random.