Ключевые слова: bourbons, campania, catacomb, cavern, cavern system, diving, geothermal system, geothermal zone, gulf of naples, hypogea, italy, kingdome of naples, landmark, mount vesuvius, naples, naples cave, naples cavern, national museum, neapolis, old town, piazza del plebiscito, pompeii, shelter, spiraling staircase, staircase, subterranean naples, subterranean system, tourist attraction, tourist destination, travel destination, tuff mine, tuff rock, underground, underground cistern, underground naples, underground system, unesco, unesco world heritage, vesuvius, volcanic rock, volcanic tuff, volcano, water cistern, world war ii, world war ii shelter,