The castle ruins are the landmark of Ardez.
In the heart of the small medieval town of Estavayer stands the Château de Chenaux, looking out over Lake Neuchâtel and the reed beds of the Grande Cariçaie nature reserve.
The last emperor of France lived high above Lake Constance, in the middle of a large park, in a tastefully furnished castle. Today's Napoleon Museum contains the original furnishings. The park has recently been restored.