 Men have named you. Via della Prata, the 16th century home of the real Mona Lisa and her husband, Francesco del Giocondo, has hit the market for the equivalent of more than $19 million. The 30,000-plus-foot property outside Florence has 14 bedrooms and 15 bathrooms on almost 67 acres. It includes some things Leonardo da Vinci's subject never dreamed of, a tennis court.