Did Leonardo Da Vinci Create a second Mona Lisa?

Published On: Sep 27 2012 06:27:52 PM CDT   Updated On: Sep 27 2012 03:36:02 PM CDT

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.