In honor of Halloween, an illusion involving something macabre seems appropriate today.  The following illusion is a skull afterimage illusion.  In order to get this illusion to work, stare at the X in the eye of the skull for thirty seconds.  Then look away from the image at a blank sheet of paper or wall [...]

Follow the instructions below to see a black and white photo of a building entrance appear in full color.  Then, as the illusion starts to wear off, the colored picture turns back to black and white. If you are looking for additional afterimage illusions like this one, make sure to check out the Jesus illusion [...]

Stare at the image of Che Guevara below for at least 30 seconds and then look at a blank surface or close your eyes.  If you close your eyes, it can help if you look toward a light source such as a window or a lamp.  What do you see? If you enjoyed this illusion, [...]

The Lilac Chaser is a visual illusion that actually consists of multiple optical effects.  If you stare directly at the + in the center of the image, you will quickly notice that the purple discs will slowly disappear.  You should also notice that a single green disc rotating around in a circle will suddenly appear [...]

The Jesus Illusion is a popular afterimage illusion.  Stare at the dots in the center of this image for approximately 60 seconds.  When the time is up, quickly close your eyes and look at a bright light source (like a lamp).  Alternatively, you can also look at a blank wall.   You should see a white [...]