My wife and I will be traveling with another couple to Europe next September/October for roughly 2 weeks. The places of interest for this trip were Vienna, Budapest, Krakow, Prague and Munich for Oktoberfest for a few days, but this is only a rough list. Is 14-16 days enough time to visit 5 countries via train/plane if you stay in the cities and don't venture to far off. Is it worth getting a rail pass? Can we fit another city like Zurich in or is that too much? We are not big on museums or big group tours - rather explore the city ourselves. Any advice is greatly appreciated.