I visited this WHS in June 2014. After spending quite a lot of money to visit other Swiss WHS and mostly because on the day it wasn't sunny, I decided to visit the main train stations and scenic points of the Albula and Bernina passes by car. Considering the many tunnels involved, I think that this approach let me see much more than what I would have seen on the train and I could read the different information boards and take photos at leisure instead of seeing the sites for some split seconds on the Bernina Express. The main railway sights are Rothenbrunnen, the Solisviaduct, Pontresina, Morteratsch, Lago Bianco in Ospizio Bernina, Valposchiavo, the "round viaduct" of Brusio and the Landwasserviaduct. The latter was definitely my favourite and the true highlight of my road trip through mountain passes. From the Filisur train station, there's a short hike to a panoramic point over the Landwasserviaduct and a longer hike beneath it with a number of information boards along both ways. In the future I might be tempted to take the Glacier Express instead of the Bernina Express which costs around 100 euros for the return trip from Chur to Tirano.