Wendelstein Rack Railway

The Wendelstein Rack Railway, sometimes just referred to as the Wendelstein Railway, is an electrically-driven metre gauge rack railway that runs up the Wendelstein in the Upper Bavarian Limestone Alps. Together with the Wendelstein Cable Car it is operated by the Wendelsteinbahn GmbH. The mountain railway climbs through a total height of 1,217.27 metres. The Wendelstein Railway is one of only four working rack railways in Germany, the others being the Bavarian Zugspitze Railway, the Drachenfels Railway and the Stuttgart Rack Railway. It is also the second-highest railway in Germany, after the Zugspitze Railway, but the highest when considering only open-air railways.

Source: Wikipedia