ancient underground catacomb

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