"C-C" or "Rhaetian Crocodile" Ge 6/6 I # 414, built in 1929, is crossing the largest and highest stone built bridge of the Rhaetian Railway, the 89 meter high Wiesener viaduct, with a main span of 55 meter, pulling the nostalgia train R 1815 from Davos Platz to Filisur, with beautiful vintage cars and two yellow open observation cars in the middle. The train run twice daily during the summer months, replacing a modern timetabled train, usuable with any valid ticket without surcharge.