The first building on the site of current Sion Cathedral was built in the 9th century and destroyed by fire in 1010. The next Romanesque cathedral existed until the 15th century. The existing bell tower dates from the 13th century. The nave was rebuilt in Gothic style between 1450 and 1500. The cathedral contains several Roman inscriptions, 15 altars, and many fonts.
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.