fortress walls surrounding the ancient old town of kotor in montenegro

town tourism waterway transport mountain vehicle bridge village reservoir vacation canal fjord valley lake flower sea pleasure boat terminal fortress wall craggy kotor montenegro ancient old surrounding built contained walls medieval venetian foot giovanni hill triangular ramparts tower citadel castle unesco world heritage site walled city romans founded 168 centuries illyrians byzantines serbians hungarians 1420 fortifications bc ruled falling rule 1420 built river Skurda