Rotund castle was built around 900 by the bishops of Chur. In 1150 the bishop give the castle to noble family Rotund. After the family line died out in 1288 the castle has had several owners. It was restored in the 15th century. The ruin is freely accessible but there is a risk of collapse.
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.