Plzeň has a 20 km historic underground tunnel/cellar network, among the longest in Central Europe. The labyrinth of corridors, cellars and wells dates from the 14th century and was made for storing for example food and beer barrels. Part of this network is open to the public for tours.
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.