Which is the best way to travel around Europe and Cheapest?

If you are going to keep on the move, and you don't mind sleeping on trains a lot (saves hotel bills) then a Eurailpass is the cheapest way to go. In Britain the trains are ridiculously expensive, so you have to take coaches. ... During the summer they often have special railway tickets which allow you to travel throughout Europe for a few months. But other than that.. I would say try booking cheap flights (book really early or very last minute for cheapest flights) ...