Looking to explore Europe but not sure where to go? Here are some of the most popular train routes traveled by train. We've put together a comprehensive list of popular routes in France, Switzerland, Italy, Germany, Spain and more. We provide you with information to help inspire you, detailed insights on how to travel between cities on high-speed, regional and local trains in Europe, and of course, our expert knowledge on all things train. View our guides and start creating your dream itinerary today!