Jungfrau Railway

The Jungfrau Railway is a mountain rack railway in the Bernese Alps, Switzerland, connecting Kleine Scheidegg in the Bernese Oberland to the Jungfraujoch, across the Valais border. It is the highest railway in Switzerland and Europe, running 9 kilometres from the station of Kleine Scheidegg to the Jungfraujoch, well above the perennial snow line. As a consequence, the railway runs essentially within the Jungfrau Tunnel, built into the neighbouring Eiger and Mönch, to protect the line from snow and extreme weather.

The Jungfrau Railway got its name from the highest of the three high peaks above it: the Jungfrau, which was the initial goal of the project. A lift connecting the summit of the Jungfrau with an underground railway was planned. In 1912, the project ultimately ended at the Jungfraujoch, the saddle between the Mönch and Jungfrau. It was one of the highest railways in the world at the time of its inauguration.

Source: Wikipedia