As winter turns to spring – the track circles round on itself | Switzerland Tourism

The spiral viaduct at Brusio: The train needed to bridge a considerable difference in altitude in a very short distance. The ride began in St. Moritz (1,775 m.a.s.l.), crossed the Bernina Pass (2,253 m.a.s.l.) and winds up in Tirano (429 m.a.s.l.). And since it was a train built specifically for tourists who wanted to see the lovely landscape, the train had to go through as few tunnels as possible. But the solution they came up with was quite ingenious: rather than use switchback tunnels, the train uses switchback viaducts that have have a diameter of 100 meters. Train passengers are usually in awe over this engineering feat. Discover Switzerland by train now: https://www.myswitzerland.com/en-ch/experiences/circling-trains-in-brusio/

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Switzerland. http://MySwitzerland.com