Optical illusions that challenge you to find the hidden animals are a real test of observation and attention to detail. To solve this optical illusion, all you need is to spot the hidden cat in the ...

This optical illusion will test your brain's ability to zone out while looking at repetitive patterns. Can you find the hidden letter before time runs out?

A Typographic Optical Illusion is a visual phenomenal trick, where different letters, numbers, and words are arranged in a ...

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

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 ...