Ключевые слова: ancient, architecture, autumn, balkan, building, bulgaria, bulgarian, castle, cherven, church, city, cityscape, countryside, cultural, danube plain, fortificated, fortification, fortress, hill, history, landmark, mountain, museum, outdoor, panorama, predbalkan, ruins, rural, ruse, ruse region, rusenski lom, second bulgarian empire, sight, sightseeing, stara planina, stronghold, tourism, town, travel, urban, vacation, wall, watchtower,