The Mansion on O Street

This eccentric complex of connected townhouses near Dupont Circle functions as a museum, hotel, and event venue crammed with themed rooms and hidden doors. Its interiors are filled with an ever-changing trove of art, memorabilia, and antiques, and dozens of concealed passages invite visitors to hunt for secret spaces. The property has a long association with musicians and public figures. Its maze-like layout makes it unlike any conventional house museum in the city.