Ciutadella | Vila Olímpica (Catalan pronunciation: [siwtəˈðeʎə ˈβilə uˈlimpikə]) is the name of a station in the Barcelona Metro network, as well of a nearby Trambesòs station in the Sant Martí district of Barcelona. It's named after one of Barcelona's major parks, Parc de la Ciutadella, and Vila Olímpica, a neighbourhood in the immediate vicinities. It's served by L4 (yellow line), and tram route T4, of which it is a terminus. It was built in 1977 under . It was closed between 1991 and 1992 because of infrastructure improvement with the occasion of the 1992 Olympic Games, and again as of mid-2007 due to improvement of L4.