The Bernina railway, the only rail link between Italy and eastern Switzerland, is the highest-elevation adhesion railway route in Europe. Inaugurated in 1908, the spiral viaduct in Brusio was built in order to limit the railway's gradient to a maximum of 7%. It is a UNESCO World Heritage site since 2008.
![Brusio Spiral Viaduct](https://cdn.myportfolio.com/645ef5b2f82fdeaf819364ecd9d55d6c/0a432769-2a9b-4a4a-aab2-fcaf146ccb89_rw_1920.jpg?h=4ed4ef66e48802d4375571e5cbc145fd)
Brusio Spiral Viaduct
![Brusio Spiral Viaduct](https://cdn.myportfolio.com/645ef5b2f82fdeaf819364ecd9d55d6c/18fbc3fc-4643-4397-a498-f137963dba73_rw_1920.jpg?h=71363c2cd9a9576118010cf79b5eac7b)
Brusio Spiral Viaduct
![Brusio Spiral Viaduct](https://cdn.myportfolio.com/645ef5b2f82fdeaf819364ecd9d55d6c/8ef873f5-d696-4ba1-94db-ef5f47f77945_rw_1920.jpg?h=1d39c7545ac0a6819dd3f2a8bb5dd074)
Brusio Spiral Viaduct
![Brusio Spiral Viaduct](https://cdn.myportfolio.com/645ef5b2f82fdeaf819364ecd9d55d6c/cd9531ff-0ec4-4475-b1b2-8c14ee60c620_rw_1920.jpg?h=b45de0eb32016d86bafabf8671de48b1)
Brusio Spiral Viaduct
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