Burg Hohenwerfen is a fortress in Werfen, Salzburg, in Austria. The history of the fortress dates back to the 11th century; over the years it has mostly served as a prison. Between 1938 and 1987, it was used as a police academy ; in 1969, the movie Where Eagles Dare was shot here. The fortress is now a tourist attraction that is open during the summer with guided tours and falconer shows.