Sarnen witch tower

It was built shortly before 1291 and came into the possession of the state of Obwalden around 1308 after being captured without violence. It then served as a prison, interrogation chamber, treasury tower, archive and museum. During the restoration in 1985/86, the changes made over the centuries were reversed, with the exception of the 18th century structure, which was left in place and is shown as a later intervention. The installation of a light, self-supporting steel skeleton construction allowed the new use as an archive tower without affecting the preserved original structure.