Old quarters of Gjirokastër, Albania

old quarters gjirokaster albania traditional houses old city unesco world heritage site historical buildings architecture cultural heritage popular tourist destination historic heritage ottoman stone structures preservation ancient traditional architecture architectural beauty travel landmark balkans southern europe unesco site gjirokaster castle historical city historical center cityscape tourist attraction cultural preservation tourist spot traditional homes historical district preservation efforts cultural landscape scenic visitor attraction city planning ancient town cultural significance sightseeing vacation spot heritage conservation medieval popular landmark mustvisit old town charm