Châtelet is a station on lines 1, 4, 7, 11 and 14 of the Paris Métro in the centre of medieval Paris and the 1st arrondissement. The station is made up of two parts connected by a long corridor:
lines 7 and 11 under the Place du Châtelet and the Quai de Gesvre (site of the original medieval river port of Paris), next to the Seine;