Glasgow Cathedral is a fine example of Scottish Gothic architecture and is the oldest cathedral on mainland Scotland and the oldest building in Glasgow. A stone-built church has stood on the site since 1136 and the lower church contains the shrine of St Mungo, who died around 612. However, most of the present building dates from the 13th or 15th centuries, with an exception being the stained-glass windows, recognised as one of the finest post-war collections in the country. It is the only medieval cathedral on the Scottish mainland to have survived the 1560 Reformation virtually complete. Sunday services take place at 11am. The Glasgow Necropolis behind the cathedral is well-worth a visit as well.