Built in 1481, the tower mill grain supply was safe in the event of a siege. In favorable wind direction, on the southwest side of town, was built on a three-storey tower bastion a mill with a diameter of 8.70 meters. On 7 February 1642 shot a Hessian - French army during the siege, "Hesse war" next to the mill a breach in the wall, conquered the city. The streets "Hessen Wall" and "Hessenring" remember still in it.