“Some journeys change you twice — once in the country you leave, and again in the one you cross into.” Stepping onto a train in Europe often feels like stepping into a story, and some of the best chapters happen when one short ride carries you across an entire border. In under a couple of hours, you can watch one country fade into another—new language, new flavors, new rhythm—without ever dealing with airports or stress. It’s the simplest kind of adventure: two countries, one