Since I just took the Amtrak train from Olympia to Bellingham, WA and enjoyed to joys and sorrows of train travel in the US I thought I link to one of the most magnificent train routes in Europe. The Rhaetian Railway in Switzerland:

Rhaetian Railway in the Albula / Bernina Landscapes, brings together two historic railway lines that cross the Swiss Alps through two passes. Opened in 1904, the Albula line in the north western part of the property is 67 km long. It features an impressive set of structures including 42 tunnels and covered galleries and 144 viaducts and bridges. The 61 km Bernina pass line features 13 tunnels and galleries and 52 viaducts and bridges.