Must-see sites Places you shouldn’t miss along the Seine à Vélo favorite Street Art Avenue favorite Château de Malmaison favorite Fournaise Hamlet on the Île des Impressionnistes favorite The royal and imperial town of Saint-Germain-en-Laye favorite La Frette-sur-Seine, known as the Pearl of the Val d’Oise favorite La Maison de Claude Monet favorite Le Château de la Roche-Guyon favorite Musée des Impressionnismes favorite Base de Léry Poses favorite Château Gaillard favorite Musée de la Batellerie favorite Biotropica Animal Park and Gardens favorite Pont de l'Arche and Bonport Abbey favorite Rouen and its historic centre favorite Sahurs favorite La Bouille favorite Château Robert le diable favorite Jumièges Abbey favorite Musée Victor Hugo favorite Le Havre favorite La Maison du Parc Naturel Régional des Boucles de la Seine Normande favorite Brotonne Forest favorite Honfleur favorite Deauville