The medieval urban layout of the Old Town has been preserved. Many baroque and Renaissance houses in the market square and its neighborhood. The 1604 town weighhouse is a fine example of Dutch Renaissance. A baroque fountain decorated with dolphins and triton from 1701. One side of the market square is occupied by the large stone cathedral (15th c.) with a fine double doorway. Worth a visit are also two baroque churches - SS Peter and Paul and Our Lady's Assumption - and the 17th/18th century bishops' palace.