WARNING: don’t view this creepy optical illusion after dark. Internet users report that the visual trick that makes viewers see nonexistent, morphing faces, can be upsetting and scary. The video was ...

Optical illusions have taken the internet by storm. They provide a dose of fun and challenge people as well. These illusions encourage people to think in new ways and improve their observation skills.

Our eyes and brain sometimes play tricks on us, and that’s exactly what optical illusions do. They are pictures designed to make us see things differently. Solving these illusions is not only fun but ...