Hunt for historical fashion treasures after dark. The Musée des Arts Décoratifs opens its doors for a playful evening scavenger hunt through the permanent collections, challenging you to track down faithful reproductions of elaborate period pieces: 16th-century ruffs, 18th-century panniers, and 19th-century crinolines and bustles. A rare chance to explore the museum at night while learning how these dramatic silhouettes shaped fashion history.