We are arriving in Paris via plane. Any suggestions on what area to stay that is closed to the main attractions but also closed to the train station. We are planning on taking the train from Paris to Lourdes, France where we are staying overnight. We will leave the next day to Barcelona and stay overnight before our cruise. This is our first time to travel in Europe and we do not have any idea which type of train to take. Because of the time constraint, we plan on taking a fast train but we do not know which one. We also need help on the names of the terminals in Paris, Lourdes, and Barcelona. Please help. Thanks.