Klagenfurt am Wörthersee (Slovene: Celovec) is the capital of the federal state of Carinthia in Austria. With a population of over 90,000 it is the sixth-largest city in the country. The city is the bishop's seat of the Roman Catholic diocese of Gurk-Klagenfurt and home to the Alpen-Adria University. There is a civic theatre-cum-opera house with professional companies, a professional symphony orchestra, a state conservatory and concert hall; there are musical societies such as Musikverein (founded in 1826) or Mozartgemeinde, a private experimental theatre company, the State Museum , a modern art museum and the Diocesan museum of religious art; the Artists' House, two municipal and several private galleries, a planetarium in Europa Park, literary institutions such as the Robert Musil House, and a reputable German-literature competition awarding the prestigious Ingeborg Bachmann Prize. The Artists' House , 1913/14, Architect: Franz BaumgartnerKlagenfurt is the home of a number of small but fine publishing houses, and several papers or regional editions are also published here including dailies such as "Kärntner Krone", "Kärntner Tageszeitung", "Kleine Zeitung". Klagenfurt is a popular vacation spot with mountains both to the south and north, numerous parks and a series of 23 stately homes and castles on its outskirts. In summer the city is home to the Altstadtzauber (The Magic of the Old City) festival.