The self-deprecating 'slowest express in the world' takes around eight hours between Zermatt and St Moritz, crossing 291 bridges and the 2,033-metre Oberalp Pass while lunch is served at your seat. Full-length it's a splurge; the smart economy is riding just the best section — Zermatt to Andermatt, or Chur to St Moritz — on regular trains with a normal ticket. Winter arguably beats summer: the Rhine gorge under snow is otherworldly.
Featured in Ten mountain railways with views you won't believe · Mountain