Villa Torlonia Museums (Casino Nobile & Casina delle Civette)

A complex of three remarkable museums inside the Villa Torlonia park — Mussolini's personal Rome residence from 1925 to 1943. The Casino Nobile is the neoclassical main villa where Il Duce lived, with elaborately frescoed halls, a Canova sculpture, and — in the basement — his meticulously restored WWII bunker and gas-proof shelter (visitable separately). The Casina delle Civette (House of the Owls) is Rome's single most extraordinary Art Nouveau interior: a fairy-tale cottage with turrets, archways, and dozens of unique stained-glass windows featuring owls, peacocks, and floral motifs designed in the early 1900s. The Casino dei Principi hosts the Archive of the Roman School. TripAdvisor Travellers' Choice winner; consistently featured by Lonely Planet, The Culture Trip, and Pocket Wanderings as one of Rome's best hidden attractions. Free to enter the park; museum tickets purchased separately.