The two menhirs on the gate tower mark Siegfried's grave. If you look at the city wall from here, you will see a small passage on the left: This is called the "Fischerpförtchen", because the fishermen returned to the city after their catch, because the main gates did not always have to be opened. According to modern legend, the reformer Martin Luther should have come out of the city undetected through this door ...
The tower on which one looks and also the city wall itself are part of the Nibelungenmuseums, whose entrance is on the other side of the wall.