This stone building dates from the 15th Century. It was originaly built as a Barbican to protect Michalska Brána (St Michael's Gate). In the 16th Century it was extended upwardly with new arrow slits. It gained it's Baroque appearance in 1712. A little later, a small stone bridge with sculptures of St John Nepomuck and the archangel Michael, was built across the moat which formed part of the town's defences.
According to legend, the town executioner would walk to the gallows through the narrow passage of the barbican, which were situated in front of St Michael's Gate. For this reason many people, even today, avoid the small passageway, which is said to harbour bad luck.