Paris main Train stations are Gare St Lazare,Gare du Nord,Gare Montparnasse,Gare d'Autsterlitz,Gare de Lyon, Gare de L'Est.
The Best is to book your tickets on line with www.sncf.com and pick them up at any station or have them delivered at your home.
One Hour Train and you are on a different planet!
Thanks to the excellent Train system you can go in one hour to many different places and experience another kind of Architecture, Food,Customs etc.
Lille in the northern part of France is one hour by TGV ( Fast train) from Gare du Nord and a real jewel with loads of Restaurants, beautiful buildings and shops.
Rouen a medieval city in Normandy is one hour and 30 minutes from Gare St Lazare and offers a ravishing historic center, a world famous Cathedral and a place to think about Joan of Arc who was burned there.
Epernay ( Wine Tours) and Reims( Cathedral) in the heart of Champagne are one hour 30 minutes from Gare de L'Est.
Soon Nancy in The Eastern part of France will be reachable by TGV in 1 hour and 30 minutes instead of 5 hours