Likely, sometimes, you are thinking about cruising through Old Continent by car, or railway. Many of different countries you will passing by, getting to know the culture, architecture. You will be able to take as many stops as you wish, and stay in particular towns even for whole day. There is even an option to get one ticket for all European Railways, expired after two weeks. This is very tempting option, and not as unreasonable as you can think it is. You might get a train ticket in Wroclaw and, within couple days, arrive up in Madrid, for instance. So stop hesitate, collect your baggage and go to the next railway stop!