I'm going to be traveling to Europe in about two weeks (flying into Rome, and back from Paris about 10 days later). Probably going by this route: Rome->Florence->Pisa->Milan->Lucerne->Geneva->Paris. Hope I won't have to rent a car, and instead travel by rail. Has anyone done Europe by rail? Anything I should look out for in particular?
I've started reading Europe through the Back Door by Rick Stevens but then realized by back door he means avoiding the more popular places.