Poggio Santa Cecilia, a small village in Tuscany, is on the market for 40 million Euros (around $44.6 million). Unsurprisingly, it is not in good shape. The village was abandoned in the 1960s and purchased by a group of investors who have done little to alter it since then. The total amount of land that is on the market (the village and surrounding farmland) comes to 1,730 acres, and includes, per the Times:
the entire village, with remains of its medieval castle; a palatial 18th-century villa of 7,000 square meters, or about 75,000 square feet; streets of terraced workers’ houses and piazzas; and a church with a bell tower. There are also partially restored stables, an olive mill and former workshops, as well as extensive underground cellars [as well as] 20 individual farmhouses of varying ages around the estate [and] agricultural fields, orchards and olive groves, vineyards, forest and lakes.
So if you've been looking for a nice place with the remains of a medieval castle and some lakes, take note.