Chur, Switzerland - Icy Alpine streams, jagged peaks and lovely landscapes - all this and more awaits passengers on the Rhaetian Railway's Bernina Express. Beginning its journey in Chur, capital of the Swiss canton of Graubuenden, the train winds its way up the Alps to the Bernina Pass, more than 2,000 metres above sea level. While passengers are still admiring the 4,049-metre peak known as Piz Bernina, the train starts its steep descent into the mild climate of Italy's Valtellina, an Alpine valley.