St. Salvator's Cathedral - Bruges
For the history of this church becoming a cathedral and undergoing some reconstruction see:-
http://www.visit-bruges.com/cathedrals-churches/the-saint-salvator-cathedral.htm
The Cathedral contains some lovely tapestries which were woven in Brussels in 1730 & also possesses the original paintings that were used as models for the tapestries. The Bishop's Chair [Cathedra] from St Donatian's Cathedral 1598 & lovely stained glass windows.