Friesach is one of Carinthia's oldest towns, with a medieval water moat that still functions, three castle ruins above the valley, and a living castle construction project where a new medieval castle is being built using exclusively medieval techniques and materials. The town received its charter in 1215 and served as an Archbishop of Salzburg residence through the 13th century. The experimental castle building project, ongoing since 2009, is the most unusual current attraction. About 30 minutes north of Klagenfurt by train or car; on the Vienna-Klagenfurt main railway line.