The city of Karlstad is the seat of the Karlstad municipality in midwest Sweden, and has a population of approximately 58,055 people. It has a university and a minor international airport, and is built on a river delta on the northern shore of the largest lake in Sweden. It has the second largest lake port in the country. An indoor ice rink and event arena was expanded in 2002 to host the Ice Hockey World Championships. Karlstad has several historic homes, a history museum and an amusement park, as well