Can anyone recommend a guided tour during a twelve hour (6a - 6p) layover in Paris? Also, what is the easiest and cheapest way to get into central Paris?
Joannie....you just posted the same question a couple of hours ago in the transportation section, and have had one answer already. You may want to delete this posting and stick with the first one to avoid confusion.
Paris Greeters http://www.parisiendunjour.fr/ is free and totally fabulous. We had a volunteer for two days (her idea!) and got a delightful tour. The only difficulty might be your limited time...