#GareDuNord (French: [ɡaʁ dy nɔʁ]) is a #station on #Line4 and #Line5 of the #ParisMétro. It is the busiest station in the system (not including RER stations), with 48 million entrances a year. It is connected to the #SNCF railway station Gare du Nord (literally, "North Station", until 1938 run by the well-known company #CheminsDeFerDuNord), which is served by #RERB, #RERD and #TransilienNord commuter trains as well as interurban trains to northern France, #Eurostar trains to #London.