Kahlenberg can be reached by car or by bus (Bus line 38A) via the picturesque Höhenstraße, part of which is cobblestone. The first Austrian cog railway was built to Kahlenberg in 1872 and 1873 and opened in 1874. It was designed by Carl Maader. The track climbed 316 meters over 5.5 km and started from the train station in Nußdorf (today the end station of the tram-line D) and connected through Grinzing and Krapfenwaldl to the Kahlenberg Hotel, which opened in 1872. An average of 180,000 passengers used the train line each year. After World War I, the Vienna municipality converted the trams to electric power. The surrounding citizens had already dismantled large parts of the track during the war. On September 21, 1920, the line was finally shut down.