The Rhinebeck, New York Astor Gatehouse is for sale and it's an impressive piece of history. The asking price is $2.5 million and the listing is through Sotheby's International Realty.
On the outside, it's a 100% medieval castle and then on the inside, it still has some of the charms of an old-world castle, but still modern enough that you don't have to live like Ned Stark.