One of the most famous paintings of all time, Leonardo da Vinci's Mona Lisa has a fine copy in the collection of Prado Museum in Madrid, Spain.
It was believed to be done by the pupils of the Renaissance master during his lifetime, with details and changes that mirrored those of the original at the Louvre in Paris, France.
The Prado's Mona Lisa is among 70 paintings on exhibition in Shanghai's Museum of Art Pudong from Apr 23 to Sept 1.