view of ligurian sea water through brick stone medieval wall window in lord byron parque natural of portovenere

view ligurian sea water brick stone medieval wall window lord byron parque natural portovenere coastal town riviera di levante national park cinque terre la spezia liguria italy old ancient heritage travel tourism coast europe nature mediterranean landscape architecture rock summer blue world unesco building green site beautiful sky outdoors castle hill italian background history european porto venere gulf ruins palmaria island cliff