Highspeed tilting train ETR 610 of Trenitalia, running as Eurocity 21 from Zürich to Milan, is crossing the 53 meter high and 140 meter long Chärstelenbach bridge at Amsteg. In the foreground the large buildings of the hydroelectric power station of the SBB, built for the electrification of the Gotthard line in 1922. Since 1998, the rebuilt 450 GWh power station is in a large cavern deep in the mountain, this buildings remain as monuments.