Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Optical illusions come in a ...

Our pick of the best optical illusions of all time will leave you amazed and confused in equal measure.

Optical illusions come in a multitude of forms, from mind-boggling magic eyes to astounding cognitive tricks, but my favourite has to be the world of op art. The most recent example making the rounds ...