Explore the Château de Flers, a Renaissance and classical castle housing a municipal museum with free admission. The collection features around 300 paintings including works by Caillebotte, Courbet, and Boudin, plus the world's largest public collection of Jean-Victor Schnetz. The museum operates from May to November, Tuesday through Sunday afternoons (14:00-18:00), and is closed on Mondays. The surrounding 26-hectare wooded park with its bird sanctuary remains accessible year-round.