The Pilatusbahn is the steepest rack railway of the world at 48% gradient. Opened 1889 with steam cars, using a special horizontal cogwheel system designed by Eduard Locher. The steam cars were in service until 1936, then the line was electrified. Two of the steam cars are preserved today, one in Zürich, one in München.
Deutsches Museum Verkehrszentrum, München, 2012-12-04.