Push-pull train of the Rh?tische Bahn with railcar Be 4/4 # 511 from 1971, second class car B # 2412 and cab car ABDt # 1712, running as regional train 1813 from Davos Platz to Filisur, is crossing the largest and highest stone built viaduct of the RhB, the 89 meter high and 210 meter long Wiesener viaduct, with a main span of 55 meter, built from 1906 to 1910.
