naples, italy castel nuovo facade with triumphal arch and gatehouse. external day view of 13th century medieval castle at

naples italy castel nuovo triumphal arch gatehouse medieval castle piazza municio history fortress landmark historic ancient architecture military tower napoli building europe renaissance retro aged stone facade european monument campania famous sightseeing old horizontal middle age exterior destinations built structure fortification mediterranean outdoors remains historical – gatehouse external day view 13th century piaza