Knowledge

Facts, science and history of optical illusions.
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Stereograms

Ambiguous illusions

Pareidolia (Seeing faces)

180 degrees

This photo is upside down. It is a nearly submerged SUV in a lake with many bystanders. After this image was first posted to Reddit in January 2020, it has become a popular meme with the caption: "The difference between a UFO and a female driver is 180 degrees."

click to see the illusion

Credit: geewhipped

This photo is upside down. It is a nearly submerged SUV in a lake with many bystanders.

After this image was first posted to Reddit in January 2020, it has become a popular meme with the caption: “The difference between a UFO and a female driver is 180 degrees.”

More optical illusions:

Shadow cat

Cats

This photo is not a composite, but rather zoomed in until it is hard to recognize what you are seeing. The orange color on the right is a retaining wall.

Separation

Birds