The Mona Lisa has come under attack from a Russian woman who hurled a cup at theworld-famous portrait. Leonardo da Vinci's masterpiece was completely safe, as the ceramic mug smashed on bullet-proof glass surrounding the painting. The woman was arrested, said a spokesman for the Louvre Museum in Paris, which houses the artwork. Paris police said the woman was taken to a psychiatric ward afterwards. The Louvre, the biggest art museum in the world, has thousands of paintings, but its star attraction is the Mona Lisa, known in France as La Joconde. The 500-year-old portrait was stolen in 1911, but returned to the Louvre after an Italian was arrested for its theft two years later.It was doused with acid by a vandal in 1956 and later the same year a Bolivian damaged it again by throwing a stone at it.