In the case of Paris, you would not really have that with the Metro which is confirmed to Paris and relatively immediate suburbs but with the RER (they share th

In the case of Paris, you would not really have that with the Metro which is confirmed to Paris and relatively immediate suburbs but with the RER (they share the same stations with the Metro) you can easily get off in the middle of nowhere (again - relatively, I am thinking about the south of Paris, mostly)