ancient tombs called catacombs of san gennaro.

ancient archeological archeology basement burial buried burrow bury carved catacombs caverns chamber chapel christian crypt cubiculum dark darkness death dig dugout excavation fresco gloomy grave graveside gravestone heritage italy layer mosaic naples nave netherworld old paint painted rip rock romans site stone structure subsoil subterranean tenebrous tomb tombstone tuff undercroft underground vault vestibule wall