Paris Travel Guide - HTML5

ticket for the Métro is also valid for the RER within the city limits).

By train

Paris and its surrounding areas are served by different rail systems:

 Métro (short for Chemin de fer métropolitain , Metropolitan Railway) Look for the Métro stations, marked either with a large "M" sign or by one of Hector Guimard's remarkable Art Nouveau station entrances.  RER Regional Express network used by suburban commuters anf services to airports (notably CDG Charles de Gaulle)

other regional lines

 While sharing a single system of tariffs, you have to take care to