You may see Cardiff Metropolitan Cathedral of St David across town before you actually find this grand religious building. Look around inside if it's open or just take in the facade from outside.
This principal church in Cardiff City Centre is well-liked by fellow travelers, so be sure to put it on your travel plans. However, don't end your sightseeing there. There are loads more options ready for you to check out after Cardiff Metropolitan Cathedral of St David. Principality Stadium, Cardiff Castle, and Wales Millennium Centre are nearby.