As a graphic artist, I really love illusions.
Yes, the squares labeled A and B are really the exact same color….. don’t believe me, print it, cut them out and set them side by side.
This one is so fun to print on A3 paper and hang it on the wall, then walk towards it and watch the circles move!
Don’t blink, just stare and eventually, the gray fog goes away.
Really, nothing is moving! again, print it and watch the magic!
Stare at the black cross in the middle. DO NOT BLINK. Eventually, the 12 purple dots will disappear. Some people will even see a green dot appear and rotate around.
This one should be animated, if it is not working, download it and watch it in a media player.