Optical illusions are interesting visual phenomena that deceive the brain into seeing something differently from what is real. They happen when the eyes report to the brain information that does not ...

An curved arrow pointing right. Things are not always what they seem. While most of the time our brain processes what our eyes see, there are instances when this powerful organ fails us.

From the cigar nestled in the brickwork to 'The Dress', many optical illusions have baffled viewers over the years. But the ...