This is the most spectacular section of the Albula line of the Rhaetian Railway, part of the UNESCO World Heritage Albula-Bernina, between Bergün and Preda. The Interregio 1144 from St.Moritz to Chur with locomotive Ge 4/4 III # 643 in the white EMS publicity paint scheme can be seen crossing the 138 meter long and 28 meter high Albula III viaduct, built 1901 to 1902. On the left is Albula viaduct II, which the train will be crossing in 1 minute and 40 seconds from now, after it rolled through the 677 meter long Tuoa spiral tunnel. The track visible on the right is before entering the Zuondra spiral tunnel, here the train circulated about 1 1/2 minutes before.