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.
Klagenfurt is located 446 meters above sea level and covers an area of 120.11 square km. It is on the lake Wörthersee and on the Glan River. The city is surrounded by several forest-covered hills and mountains with heights of up to 1,000 meters, for example, Ulrichsberg. To the south is the Karawanken mountain range, which separates Carinthia from Slovenia and Italy.