Palazzo del Quirinale in Rome is the working presidential palace, so public access is by timed guided tour only; book tickets well in advance on the official site and bring a photo ID. Expect strict security checks and bag-size limits, arrive 15 to 20 minutes early, and plan on a one-hour tour offered in Italian and usually English. Some rooms permit no-flash photography but rules can change on state days when areas are closed, and the gardens normally require a separate ticket with limited openings. Dress respectfully, wear comfortable shoes, and check the palace website the day before your visit for last-minute closures or schedule changes.