But the Albula steepens quickly, and the river disappears into a dramatic ravine, forcing the train to criss-cross the gorge, creaking like a sailing ship in a full-bellied wind.

BBC: Full steam ahead

Some of Richard Wilson's previous works include a large disc sawn out of the facade of a building for the Liverpool Year of Culture and a section of ship moored near the Millennium Dome in 2000, cut vertically to show its cross-section.

BBC: Italian Job scene to be on De La Warr Pavillion roof