Support WBURThe Theft That Made The 'Mona Lisa' A MasterpiecePlay05:09Download AudioNPR StaffJuly 30, 2011 ShareThe right eye of Leonardo da Vinci's "Mona Lisa." On Aug. 21, 1911, the then-little-known painting was stolen from the wall of the Louvre in Paris. And a legend was born. (Associated Press)