City Walls, Kotor, UNESCO World Heritage Site, Montenegro, Europe

kotor montenegro city walls europe historic site ancient architecture travel destination tourism outdoor exploration scenic views blue sky mountains heritage culture sightseeing cobblestone streets town square historical landmarks nature mediterranean coastal city walking tour architecture fortifications landscape cultural heritage outdoor activities vacation landmark tourist attractions cityscape vibrant atmosphere historic preservation summer travel adventure exploration travel enthusiasts picturesque local culture ancient ruins scenic panorama hiking trails urban exploration architectural heritage historical significance beautiful scenery cultural tourism local history nature views tranquil environment