Researchers may have found the "Mona Lisa" model's skeleton. (Photo : Wikimedia Commons) Scientists are on a mission to find the model for the "Mona Lisa," they plan to dig up centuries-old graves and digitally reconstruct the face of a choice skeleton. Experts believe the model for the famous "Mona Lisa" painting was Leonardo da Vinci's neighbor, Lisa Gherardini Del Giocondo, ANSA reported. Several skeletons found in a Florence convent last year could be the remains of the model. Experts plan to identify the most likely candidate and compare the DNA with a body believed to be her son. "Right...