In 2008, UNESCO decided to include the Rhaetian Railway on its list of World Heritage. Don't miss the following pictures!
Specifically, we are talking about the landscape integration of the Albula section and that of the Bernina, a line that connects Italy with Switzerland through a long labyrinth of valleys and mountain passes.
The railroad was built in the late 20th century and had a major social impact, as it brought an end to the isolation of several Alpine towns. The 61-kilometer route runs through 13 tunnels and 52 viaducts, thus becoming one of the sections highest in Europe and on one of the rail lines with greater slope (up to 7% without the help of the rack-and-pinion track).
Below, we've included some beautiful images of this great feat of engineering for your enjoyment.



This intriguing spiral-shaped structure turned out to be an ingenious solution for bridging the steep slope over a short distance. The viaduct is 110 meters long, has a radius of curvature of 70 meters, and a longitudinal cut of the 7%. The tracks rest on 9 stone arches, each with a span of 10 meters, which raise the train to a height of 20 meters.

Here's a video about the intriguing spiral viaduct.
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