A surprising warning, written in gargantuan letters in the gravel of the courtyard, greets you as you enter this Renaissance-style chateau, made famous in Alexandre Dumas père's historical novel La Dame de Monsoreau and now a museum of conceptual art specializing in the UK- and US-based Art & Language movement. Many works feature words, often in English, with intellectual and theoretical pretensions that range from profound to silly. Temporary expositions change three times a year. For spectacular river views, climb to the roof of the tower. Has a restaurant featuring local organic products.