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, ...

Optical illusions are the tricksters of the puzzle world; they are designed in such a way that they fool our brains and eyes.

A hidden dog optical illusion shared on Reddit puzzled users.

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 ...