The way your brain interprets this illusion may reveal whether you think outside the box or stick to the safe and familiar.

In an impossible figure, seemingly real objects—or parts of objects—form geometric relations that physically cannot happen. Dutch artist M. C. Escher, for instance, depicted reversible staircases and ...

Try and count the black dots.... Focus on the dot in centre... Spinning wheels... Hidden details... White lines or grey spots... Of course, optical illusions are now being put to commercial use by ...

Artists find mind-bending ways to bring impossible figures into three-dimensional reality In an impossible figure, seemingly real objects—or parts of objects—form geometric relations that physically ...