The only completely preserved fortification of Old Austria for the protection of the southern border of Tyrol.
The fortress was built around 1840, opposite stands the barracks with their bunkers embedded in the mountain. From here, the defensive wall, the Niklas Wall, dating back to the early Middle Ages, stretched up the mountain. Remains of it can still be visited today.
Summer: from the beginning of August 2021 guided tours every Wednesday and Sunday at 15:00.
Winter: Fortress closed