From the cigar nestled in the brickwork to 'The Dress', many optical illusions have left viewers around the world baffled over the years. But the latest illusion is arguably one of the most bizarre ...

While new optical illusions go viral all the time, here are some of the most famous illusions that have kept us scratching our heads for years.

A couple of years ago an optical illusion came along and almost broke our site. Over three million people read an article about the most dizzying illusion ever to grace our screens – the rotating ...

This time, I would like to introduce a book that is fun just to look at and makes you think 'Wait, why?' every time you turn ...

For over 2,000 years, scholars and admirers have alleged that the ancient Greek building’s nearly imperceptible curves were ...