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 (5.6 mi) 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.