The optical illusion going viral on Reddit challenges people to find 16 circles in a photo filled with rectangular panels.

Witness the magic of turning clear epoxy into a glowing 3D ghost hologram—perfect for Halloween décor or spooky year-round ...

A study found that radiologists who have years of training to ignore visual distractions were less susceptible to the Ebbinghaus illusion.

Discover the most expensive clocks ever sold, their prices, and why these rare timepieces are so valuable to collectors and ...