These locations showcase the architectural diversity of Paris through buildings spanning from medieval times to the modern era. The city preserves structures from two millennia: Roman baths from the 3rd century, Gothic churches like Saint-Julien-le-Pauvre, Renaissance mansions, and Art Nouveau apartment buildings designed by Hector Guimard. Beyond the famous monuments, visitors find hidden lanes with medieval timber-framed houses and private villas from the 19th century. The collection includes both public and private buildings. Visitors can explore the remains of the Arènes de Lutèce, where Romans once held gladiatorial contests, as well as the oldest residential houses in the city dating from the 15th century. The selection ranges from medieval church towers and classical arcades to modernist experiments of the early 20th century.