Floater or Wallpaper Stereograms: These are called "floaters" because objects in the image that can already be seen during normal viewing will float toward you during 3D viewing.

Hidden Image Stereograms: This type of single image stereogram has a hidden image within it.

Ambiguous Illusions: Your visual system interprets the scene in more than one way. Old Woman or Young Woman? Two heads or a vase?

Motion Ambiguity: Shadow and Ball-(interactive), Breathing Square-(interactive),

Distortion Illusions: Illusions that distort an image's size, shape, and length. Poggendorf Illusion, Twisted Cord Illusion-(interactive), Cafe Wall Illusion-(interactive), Frasier Spiral,

Camouflage Illusions: What is this picture? Hidden Bird-(interactive)

Funny Places: Tourist traps and extraordinary rooms! Balls of water flow mysteriously uphill and people grow and shrink right before your eyes. Plank Illusion-(this video takes a while to load). Mystery Spot-)a video will load at the bottom of this page),

Afterimages, Motion Aftereffects, Lateral inhibition: Images and colors that aren't really there. Spots before your eyes, and motion where there is no motion. Black and white lightbulb, Color afterimage, Motion Aftereffect-(takes a while to load), Filling-in illusion, Hermann Grid, Scintillating Grid.

Facial Illusions: Presidential Illusion, Elvis Impersonators, Track Team

Optical Illusion Collection: There are a total of 27 illusions divided into nine different collections. You will be amazed.

Fading Dot : If you stare at this dot for a few minutes, it disappears.

Bird in a Cage: After you look at the bird, scroll down to look at the flag.

Postcard Exhibits: Illusions and other surprises.

Shimmer: Your eye movements make this design seem to shimmer.

The Temple Illusion: Look carefully at this temple and you'll see there's something odd about it.

Mona: What's wrong with Mona Lisa?