Optical illusions challenge our perception and creativity. There's a hidden face in the image that only those with a sharp eye and imaginative thinking can find in 8 seconds. Tricks like rotating ...

Optical illusions never fail to amaze ... But look again, and you'll quickly realise there's more to this illusion than meets the eye. What appears to be an "X" shape, with arms in different ...

but Patrick Hughes' mind-boggling 3D art takes the concept to a whole other level. Hughes uses a style he created called "reverspective," painting uncanny optical illusions of a rooms with an ...