Researchers hope to uncover who’s behind the ‘Mona Lisa’ smile

Mona LisaIn the frigid bowels of a derelict building in central Florence, Italy, that covers the ruins of an old Franciscan convent, a group of researchers is trying to nail down some of the elusive details of the woman featured in the iconic painting. It is here that old city records say the woman who posed for the painting, Lisa Gherardini, the second wife of wealthy Florentine silk merchant Francesco del Giocondo, was buried.