Cerralbo Museum

This guide to the Cerralbo Museum in Madrid follows Enrique de Aguilera, the 19th-century Marquis of Cerralbo, from his amateur archaeological digs across Spain, including a hunt for a long-lost Celtiberian town, back to the ballroom of his own Madrid mansion. You'll hear about the ancient bones and ruins he uncovered, and the trick he built into this very room to make his party guests feel it stretch on forever. Look up at the Venetian mirrors lining the ceiling as you take in his double life.