Paris Métro Line 2 (French: Ligne 2 du métro de Paris) is one of the sixteen lines of the Paris Métro. Situated almost entirely above the former customs barrier around the capital (Boulevards extérieurs), it runs in a semi-circle in the north of Paris. As its name suggests, Line 2 was the second line of the Métro network to open, with the first section put into service on 13 December 1900; it adopted its current configuration on 2 April 1903, running between Porte Dauphine and Nation. There have been no changes in its service pattern since.