O Street Museum Foundation - museum of hidden doors and extensive collections

The O Street Museum Foundation at 2020 O Street NW is a private museum and event space notable for its maze-like layout of over 100 rooms and dozens of hidden doors and secret passages. The museum houses a large collection of art, rare books, music memorabilia, and historical objects displayed across multiple historic row houses. It operates as both a public museum and a venue for events, offering guided tours that emphasize its unique architecture and eclectic holdings. The property's distinctive interior organization and collection make it a one-of-a-kind cultural destination in the city.