The optical illusion challenge of finding a bird within 10 seconds among planes and clouds tests attention to detail.

A new study explores why magic tricks based solely on sound are rare, despite the many auditory illusions we encounter in everyday life.

Optical illusions come in all forms, from simple tricks of the eye to complex geometric designs, but my personal favourites ...

Learn about Iowa's most haunted locations at the Carnegie Library Museum, pick up a New-To-You Halloween Costume or a new ...