PARIS -- Many paintings are moved around at the Louvre in Paris, but rarely is it one of the world's most iconic works. For the first time in 14 years, Leonardo da Vinci's "The Mona Lisa" will be ...

Over 500 years after Leonardo da Vinci painted the Mona Lisa, an academic believes she has unravelled the mystery about the backdrop to one of the world's most famous works of art.