Dome of Les Invalides Paris VII - officially known as L'Hôtel National des Invalides is a complex of buildings containing museums & monuments all relating to the military history of France as well as a hospital & a retirement home for war veterans .
Musée de Cluny (Museum of the Middle Ages), Paris, France, established in 1843 upon two national architectural landmarks: the Gallo-Roman baths to centuries CE) and the Abbée de Cluny (end of the century),
arrondissement - Musee des Arts Forains de Paris (the Museum of Fairground Arts) is at 53 rue des Terroirs de France, Paris. It's a special tribute to the century funfair/carnival. That could be really interesting!