Relics of the medieval episcopla palace in the walls of the administrative building called "Stadthaus", built in 1818/1819 and replaced by the "Neus Rathaus"("New Townhall") in 1909/1910. This adaption is based on the originaldrawing of the ground flour, integrating informations of the drawing of the upper flour and of the report, whihc was illustrated by these plans.