By the 12th century a castle was built in Münsingen town from which the Senn family ruled the town. However, it was demolished by Bern in 1311. A wooden outbuilding was built on the castle lands three years later, which later became the cantonal psychiatric clinic. In 1550 the Schultheiss Hans Franz Nägeli rebuilt the castle building into its current appearance. It was renovated and repaired in 1749–53. In 1977 the municipality acquired the castle and converted it into a municipal museum.
The museum is open Friday and Sunday from October until April. It contains two permanent exhibits as well as occasional temporary exhibits. The first permanent exhibit focuses on the history of the town and on the Steiger family who lived in the castle for almost three centuries. The second permanent exhibit focuses on the work of the famous puppeteer, Therese Keller (1923-1972) who was a pioneer in the puppet theater in Switzerland.
References:Duino Castle was built by the Wallsee family in 1389 on the cliffs overlooking the Gulf of Trieste. It replaced an older castle from the 11th century. Over time, the Wallsee family disappeared and the castle, after having been used as a prison, became the residence of the Luogar and Hofer.
At the end of the 19th century it became the property of Prince Alexander von Thurn und Taxis from the Czech branch of the House of Thurn and Taxis. It remains with the family to this day with his great-grandson Prince Carlo Alessandro della Torre e Tasso, Duke of Castel Duino the current owner. The castle has been opened to the public as a museum and park.