While new optical illusions go viral all the time, here are some of the most famous illusions that have kept us scratching our heads for years.

Imagine THIS. A scene ripped straight from the wildest fantasy, a moment of raw power and unexpected humor captured in a ...

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Everyone loves an optical illusion — even if they leave us completely stumped — and they're all around us in the natural world. From an underwater waterfall in the Indian Ocean to a surrealist scene ...

To ensure the subjects blend into the background, precision is required in the creation of the jumpers and the staging of the ...

Most people use the terms “optical illusion” and “visual illusion” interchangeably, much like “fluid” and “liquid” or “sofa” and “couch” are synonyms. At first glance, this might be seemingly pedantic ...

Finding the hidden number in this zigzag optical illusion in under 21 seconds is a sign of above average vision. Take the test and find out what your eyes are capable of.

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture. Tom has a Master's degree in Journalism. His editorial work ...

Which way is the dancer spinning? Clockwise? Counterclockwise? You can choose which direction you want her to spin by simply wishing it! (Hint: if the foot touching the ground is perceived to be her ...