This optical illusion will test your brain's ability to zone out while looking at repetitive patterns. Can you find the ...

Here is an optical illusion challenge that will test your visual processing speed, attention to detail, and focus. There is a ...

Look at this optical illusion picture. Three happy girls stand together holding hands. They are wearing white headcovers, ...

A hidden dog optical illusion shared on Reddit puzzled users.

An Optical Illusion is a type of puzzle that requires cognitive skills, a high IQ, and keen visual perception. As per ...

Martin Doherty received funding from the British Academy/Leverhulme Trust who partially supported this work. He continues to receive funding from the Leverhulme Trust. Radoslaw Wincza does not work ...