You can see the Cathedral's treasure-house and its magnificent liturgical instruments here. Also, the archbishops' Curiosity Room and its sundry collection of strange objects found in the wild, as was the fashion in the 17th century. Religious paintings, originating from a wide range of local presbyteries, date from the Middle Ages to today. The Kapitelplatz monumental fountain, with a Neptune group (1732) in the middle, was the chapter's horses' drinking trough.