The Landwasser Viadukt, situated in the Albula Railway section between Tiefencastel and Filisur,
( The more than 100 years old railway line on the Albula and Bernina ) is a masterpiece of railway engineering , in keeping with the wilderness
.It's consist of six arch spans 20 metres (66 ft) in width, resting on five high pillars. The railway line near the viaduct has a slope of 2 percent, and in plan a circular arc with a radius of 100 metres (330 ft).
The southeastern abutment of the viaduct is located on a high cliff, and at that point, the tracks lead directly into the 216 metres (709 ft) long Landwasser Tunnel.
The viaduct's masonry is approximately 9,200 cubic metres (320,000 cu ft) in volume and is jointed with limestone dolomite.
Since July 2008, the Albula and Bernina lines of the Rhaetian Railway, are a UNESCO World Heritage Site.