A restored airship hangar and public cultural heritage destination in the park of Chalais-Meudon. Its history connects early French aeronautical research with a successful closed-circuit airship flight in 1884 and the former collections of the Musée de l’Air. The hangar and surrounding park now host cultural activities and interpretation of the site. This record covers the Hangar Y destination, rather than the wider Meudon estate or observatory.