The most rewarding stop on the train journey from Zurich to Zermatt in 2026 is undoubtedly Bern, the capital of Switzerland. It is a UNESCO World Heritage site and is directly on the main rail line. You can easily store your luggage in station lockers and spend 3–4 hours walking through the medieval Old Town, visiting the Bear Park, or seeing the Zytglogge (Clock Tower). Another excellent option is Thun, which offers stunning lakeside views and a historic castle without the massive crowds of Interlaken. If you prefer a mountain-gateway vibe, Visp is the final transfer point where you board the narrow-gauge Matterhorn Gotthard Bahn; while primarily a transit hub, it has a charming small-town center perfect for a quick Swiss lunch. Stopping in Bern or Thun adds a rich layer of cultural history to your trip before you head into the high-altitude wilderness of Zermatt.