A very cool optical illusion where the rings appear to be expanding. The nickname given to this optical illusion by the creator is “Throwing Cast Nets”. Click on the image of the optical illusion to see the image in full-size and to get the full effect.

Throwing Cast Nets Expanding Optical Illusion

The famous internet phenomenon Rick Astley and the rickroll prank has now become an optical illusion. Look at the black and white abstract picture below and stare at the plus sign in the middle of the picture for 30 seconds or longer. After 30 seconds look away and blink fast repeatedly.
Rickroll Optical Illusion

This is a really cool variation of the disappearing dots optical illusion. Follow the movement of the rotating pink dot with your eyes and then stare at the black plus sign in the center of the image. The pink dots should turn to green dots. Now keep staring at the plus sign in the center again, and after a short time all the pink dots should disappear and all you will see is a rotating green dot!

Disappearing Pink Dots Optical Illusion

Stare at the black dot in the center and the blue, magenta, and yellow spots around the black dot will begin to disappear. Did it work? If not you might want to move your head closer to the image.

Disappearing Spots

There are nine hidden people in the picture below. Some are just faces. Can you find them? If you find all of them feel free to post the answer in a comment to help others.

9 Hidden People