The train stops twice en route, at Eigerwand and Eismeer stations, both with phenomenal views across wild mountains and crevassed glacial ice, before cresting Jungfraujoch.

BBC: To the top of Europe by Swiss rail

Not far from Interlaken, we boarded a train that inched up a snowy mountain, bound for an Alpine saddle between the peaks known as the Jungfraujoch.

NEWYORKER: The Grand Tour

Even in midsummer, it feels like winter at Jungfraujoch: temperatures are cooler and the air thinner than in the valley below, and people sled, ski and zip-line across the snow.

BBC: To the top of Europe by Swiss rail

But in 2012 the honour must surely go to the Jungfraubahn railway, which has been trundling up to Europe's highest train station, Jungfraujoch (3, 454m), since its inauguration on 1 August 1912. (The railway is celebrating its 100th anniversary in true Swiss style this August).

BBC: To the top of Europe by Swiss rail