USS Constitution (commissioned U.S. Navy ship)

USS Constitution, berthed at the Charlestown Navy Yard, is the world's oldest commissioned warship afloat and remains an active, commissioned vessel of the U.S. Navy with a Navy crew aboard. The ship is open for public visits and guided tours, but many interior spaces and operational areas are reserved for Navy personnel and authorized staff. Maintenance, ceremonial movements, and official Navy activities aboard the ship are managed under naval protocols and access controls.