In fact, you can buy more than just a house for 1 euro. The program includes all kinds of properties and castles are no exception! But if buying a house for 1 euro in a small Italian village might cost you about 40,000 Euros in the long run, buying a castle for 1 euro will surely make you millions of Euros poorer. At the time of writing, there were no 1 euro castles on the market, but they were in the past.