This architectural wonder of a building is an exhibit in and of itself, but most people come for the old relics. It houses a fabulous collection of religious art from as early as the 11th century through the medieval period. Of the older pieces, don't miss the Scandinavian box made of bronze and mammoth tusk ivory that somehow made its way to lower Germany. Other notable exhibits are the 16th century tapestries, shiny suits of armour, hall of stained glass, goldsmith's room, regal clothing and altar pieces taken from various churches including a large skeleton riding a lion symbolising Death on the prowl.

Admission €5/4.