3. The Bernina Express, Switzerland/Italy
The Bernina Express is one of the most famous rail journeys in the world, zooming through 55 tunnels and chugging over 196 bridges on its way from Chur/St Moritz in Switzerland to Tirano, Italy (or vice versa), taking passengers on a stunning 144km journey over the alps. Highlights of the trip include stunning views over the Bernina mountains, the Morteratsch glacier, the Alp Grüm, the Brusio Circular Viaduct and the three lakes Lej Pitschen, Lej Nair and Lago Bianco. What makes it most famous though is the moment you roll over the 65-metre-high Landwasser Viaduct, the signature structure of the Rhaetian Railway and a UNESCO World Heritage site.
Average journey time: 4.5 hours
Price: If you already have a Swiss Travel Pass or Swiss Travel Pass Flex you just need to pay a reservation fee of A $60. If not, it's more like A $174 for a Saver Day Pass + reservations. For more information on pricing head to My Swiss Alps.