The oldest surviving private house in Paris, built in 1407, is to be found in the 3rd arrondissement at 51 rue de Montmorency.

[2] The ancient Jewish quarter, the Pletzl (פלעצל, 'little place' in Yiddish), which dates from the 13th century, begins in the eastern part of the 3rd arrondissement and extends into the 4th.

It is home to the Musée d'Art et d'Histoire du Judaïsme ('Museum of Jewish Art and History') and the Agoudas Hakehilos synagogue designed by the architect Hector Guimard.

A small but slowly expanding Chinatown, inhabited by immigrants from Wenzhou, centers on the rue au Maire, near the Conservatoire national des arts et métiers and the Musée des Arts et Métiers, partly housed in the medieval priory of Saint-Martin-des-Champs.

[4] The Conservatoire national des arts et métiers (CNAM) has its main Paris campus in the area around the métro station to which it gives its name.