This 15th century castle set in the Tuscan countryside has an enduring place in the history of Florence, Italy. And now, for the price of €6 million or about $6.35 million, you could be its new overlord. The Cavalcanti Castle was constructed around 1427. In the intervening centuries, the castle has undergone numerous expansions and restorations while retaining its architecture and distinctive features. Parapets line the roof of the solid stone structure—once a watchtower—which sits atop a hill