Turmbergbahn

thumb|right|Turmbergbahn cars at passing loop thumb|right|Upper station from above thumb|right|Looking down the line thumb|right|Interior of upper station The Turmbergbahn is a defunct funicular railway in Karlsruhe in Germany. It was the oldest operating funicular in Germany from its opening in 1888 until its closure in 2024. From Durlach, the line climbed the Turmberg, which on a clear day provides a lookout point with views of the Rhine Valley, the Palatinate forest and the adjacent parts of Alsace.

The line first opened in 1888 by the Turmbergbahn Durlach AG, and in its original form used the water ballast system of propulsion, similar to that still used by the Nerobergbahn in Wiesbaden. Operation of the funicular was interrupted twice during World War II, once near the beginning, and again from 1945 to 1946. The line was comprehensively rebuilt in 1966, and the water ballast drive was replaced by a conventional electric drive. It was run by the Verkehrsbetriebe Karlsruhe, the operator of the Karlsruhe tram and bus system.