Probably the oldest railway tunnel in Germany from 1836

The tunnel was created with the construction of the coal railway Tollwitz - Dürrenberg. In the opening year 1836 it caused a sensation in the professional world with its impressive length of 177 m. At that time it was called an "underground arched path", which at its deepest point was up to 5 m below the surface. The building is also located in a curve with a constant gradient towards the former production area of the salt works. The brick lining was made of brick and natural stone. The Tollwitz entrance was equipped with lockable gates. The tunnel was the first German 'railway tunnel'.

Even today you can see the original cast-iron plaque in the Borlach Museum, which was attached to the wing wall of the tunnel portal for the opening. After the coal railway was shut down in 1935, the eastern access road was filled in, but the tunnel itself remained almost completely intact. During the Second World War, local residents used the tunnel as an air-raid shelter. The tunnel portal in the former salt works area was preserved and was renovated some time ago. Guided tours of Germany's oldest railway tunnel are held on special occasions.