Musée National du Moyen Âge

Magnificently renovated to emphasize the building's various architectural layers, the National Museum of the Middle Ages showcases its treasure trove of a collection, from medieval statuary and stained glass to its celebrated series of tapestries called The Lady with the Unicorn (1500). Other highlights include the ornate 15th-century mansion Hôtel de Cluny and the frigidarium (cold room) of an enormous Roman-era bathhouse.