Grüningen castle was built before 1229. It was in early times owned by the Counts of Regensberg. From the original castle only the Palas exists. At the place of the today's church stood a chapel since at least 1396, which was extended 1610. In 1782 it was demolished and rebuilt in its early Classicist style.
For centuries, the castle has been the residence of bailiffs. They have been assigned for the administration and justice over the large area at the Zurich Oberland from Lake Zurich to the Töss Valley. The museum gives an overview of the history of Grüningen, the bailiwick and sovereignty with its castle and country town. The museum is located at the first floor of the castle building and is open from April to October.
The Château du Lude is one of the many great châteaux of the Loire Valley in France. Le Lude is the most northerly château of the Loire Valley and one of the last important historic castles in France, still inhabited by the same family for the last 260 years. The château is testimony to four centuries of French architecture, as a stronghold transformed into an elegant house during the Renaissance and the 18th century. The monument is located in the valley of Le Loir. Its gardens have evolved throughout the centuries.