The economic boom of the town in the 1680s was also reflected in extensive municipal building investments. A year after the expulsion of the Catholic priests, the town council began construction of the western square tower adjacent to the parish church in 1587. One of the last building projects before the Thirty Years' War was the construction of the so-called parish bastion in 1613. After the Battle of White Mountain, however, the town suffered a steep fall and lost its freedom for a long time. The plaque announcing the construction of the bastion is now located in the vestibule of the town hall on the square.

Nowadays, the bastion is the seat of the Club of Natives and Friends of the town, which organizes a number of interesting exhibitions and lectures here.