Art Experts May Have Found A Second 'Mona Lisa'

Art experts are currently examining a mysterious painting housed in a St. Petersburg private collection, believed to be a second version of Leonardo da Vinci's iconic "Mona Lisa." As usual, Mona herself is being quite coy on the topic.  Currently, the assertion that this very Mona Lisa-esque Russian portrait is actually Mona Lisa's kin is only hypothesis, though research coordinator Silvano Vinceti maintains that there is sufficient evidence indicating the work is authentic. The Russian Mona l...