The purpose of the Foundation (Turmstiftung Schloss Holligen) is to preserve the residential tower as a historical monument. The castle was built around 1150.
The Foundation also organises expositions and other cultural events in this medieval donjon.
Museum: Tower Foundation Holligen CastleCity: Holligen
Country: Switzerland
Address: Bärenfelserstrasse
Website: https://schlossholligen.ch