roof of gjirokaster castle in albania

gjirokaster gjirokastra castle albania ruins architecture building old historic historical heritage battlements crenellations crenellated embrasures crenels crenelles merlons landscape rooftop mountains view rainwater roof management chute method water rain drain drainage system gutter channel scupper exit conduit gully groove trough parapet europe travel tourism landmark unesco world site panoramic panorama fortified fort citadel fortification fortress walls walled stone countryside rural east south ottoman hills hilltop archaeology albanian european balkans nature southern eastern exterior drino valley outside outdoors defensive june summer