Thouars, FR
Strategically situated over the Thouet river, it was built in 1638. The main building is currently used as a junior high school, it can't be visited but seeing it from the outside is still worth it. Also check the chapel, stables, the view over the river, and the orangery which served as a model for
those in Versailles.
Listen to the audio guide for Château des Ducs de la Trémoïlle Free on WIP — starts by itself when you arrive, even with the screen off