Be fooled by these mind-bending paper-based optical illusions. Russia formally declared national security threat to Britain Shake Shack founder: The best employees share 6 'emotional skills'—'I ...

Looking at other people's optical illusions is fascinating, no doubt, but have you considered making your own? I've ...

it appears to be a 2D drawing on paper. Looks, though, can be deceiving: the depth in the two-dimensional wall drawings gives an illusion of 3D. The furniture in the café has been painted in ...