nantes cathedral saint-pierre and saint-paul organ and high ceilings and columns

arches architecture balcony belief bretagne brittany building cathedral cathedrale catholic ceiling ceilings ceremony church columns day daylight decorations france god gothic height high historic immense imposing interior light loire loireatlantique marble medieval monument nantes natural nave organ ornate prayer praying public religion religious roman saintedglass saintpaul saintpeter saintpierre spacious spiritual spirituality symmetrical symmetry tall volume walls