First there was one city wall, then another. Both were breached as the city grew.
First there was one city wall, then another. Both were breached as the city grew.
Yet here at the somewhat unimposing Knopfliturm, the city walls can be seen on both sides of the tower. This was the second city wall of the 16th century and on the south-western side it is possible to see the wooden battlement parapets, part of which was restored in 1992.