RATP, the public-transportation network of Paris, has a
and other information in half a dozen languages (including English).
This article from Wikipedia, the free encyclopedia, gives a short history of the
Réseau Express Régional and briefly describes the five RER lines.
The Paris underground system has 14 lines, 380 stations, and 130 miles or
211 km of track. Our article describes how to buy tickets and ride the
Charles de Gaulle Airport
Ground Transportation parisforvisitors.com
RER Line B connects CDG with central Paris. Our illustrated article tells how to
take the train, or--if you prefer--how to reach the city by bus, shuttle, or
Orly Airport Ground Transportation
article tells how to reach Paris via links to the RER and other transport modes.