This is a working church and you may want to attend one of its various services. If so check out their website for details. You are however very welcome to go along and visit the Cathedral to admire the magnificent medieval architecture, or its lovely stain glass windows or to find out about its history. There are guided tours or you can simply walk around yourself. It was built in the 12th century and marks the birthplace of Glasgow city. Nearby is the Glasgow Necropolis, St Mungo Museum of Religious Life and Art and a Statue of William III of Scotland so if you have time why not try and have a look at one of these also.