This spectacular estate is as close as Scotland gets to the treasure houses of England—which is not surprising, since it's owned by the dukes of Buccleuch, one of the wealthiest British peerages. Resplendent with romantic turrets, this pink-sandstone palace was constructed between 1679 and 1691 by the first Duke of Queensbury, who, after nearly bankrupting himself building the place, stayed one night and never returned. The Buccleuchs inherited the palace and soon filled the richly decorated rooms with a valuable collection of paintings by Holbein, Rembrandt, and Murillo. Because of the theft of a Leonardo da Vinci painting in 2003, all visits are conducted by guided tour. There's also a playground, a gift shop, and a tearoom.