U6 (Berlin U-Bahn)

U6 (Berlin U-Bahn)

U6 is a Berlin U-Bahn line, 19.9 km long line with 29 stations. It runs in a north-south direction from the Berlin locality of Tegel in the north via Friedrichstraße to Mariendorf, a locality in the southern part of the city. It is a so-called large profile line.

During the Cold War, both U6 termini were in the former West Berlin but the line passed under East Berlin for a short section of its route. Five of its stations were sealed off by East German authorities and the trains went through these so-called “ghost stations” without stopping.