Did Leonardo Da Vinci Create a second Mona Lisa?

Published On: Sep 27 2012 07:27:52 PM EDT   Updated On: Sep 27 2012 04:36:02 PM EDT

Leonardo Da Vinci’s Mona Lisa might be the world’s most recognizable painting, but a group in Zurich claims it isn’t really one of a kind. The Mona Lisa Foundation is unveiling what it claims is a sister portrait painted 10 years earlier by Da Vinci.