Has the Mona Lisa's great mystery been solved after 500 years?
An art historian claims to have been able to decipher the location of the Mona Lisa in Leonardo da Vinci's famous painting - and it's not where most people had assumed.
The Mona Lisa, by Leonardo da Vinci. One of the most famous paintings in the world. (Illustrative)(photo credit: Wikimedia Commons)ByWALLA! CULTURE