Public Transportation in Paris

The most comprehensive public transportation option in Paris, France is the Métro. Without it, Paris would grind to a halt-and does every time there is a transport strike. The Paris Métro, which dates back to 1900, is laid out on a grid of 16 lines similar to other European public transportation systems like the London Underground and the Barcelona Metro, so that every line reaches every area of the city within a couple of blocks. You can get single tickets as well as day or week passes, or even special passes like the Museum Pass that gains you access both to the Métro and over 60 museums in Paris.

Be careful, though, since the Paris Métro is divided into five zones and the more zones you buy for, the more expensive your ticket or pass. But once you are in the Métro system, you can transfer to any line inside of it without paying more. Expect a lot more security inside the Métro post-9/11, including paired security guards with dogs. Awareness of the vulnerability of public transportation to terrorists, always high in Europe, has gone up since the bombings in London and Madrid.

Zones 1-3 are the center of Paris, including famous areas like Notre Dame, the Louvre and the Eiffel Tower. Zone 5 is technically outside the city and includes attractions like Versailles. If you're up for a relatively cheap day trip, you can either get a Zone 5 ticket or get a package ticket that includes a round trip to Versaille and back as well as the price of entrance, all discounted.

The Métro also intersects with the RER (Réseau Express Régional), which goes into Zone 5 and out into the country. Most of the RER was built in the 1960s and 1970s to provide regional service to the Parisian suburbs. All public transportation systems in Paris, including the Métro, RER and city busses, come under the RATP (Régie Autonome des Transports Parisiens).