The Brusio spiral viaduct 360-degree spiral track - built in 1908 and was made to ensure that the train does not slope too quickly on the way down or slip on the way up.The Brusio spiral viaduct forms part of the Bernina Railway section between Brusio and Campascio. It is just south of Brusio, and approximately 54 kilometres (34 mi) from St. Moritz

360-degree spiral railway viaduct was built in 1908