Buchegg Castle, built in 1546, has a square tower with a hip roof. The Counts of Buchegg had a castle on the site until 1383 when it was destroyed by the House of Kyburg. The current building saw service as a prison and came into private ownership in 1863. It was restored in 1938 and was converted to a museum in 1956.
References: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.