Ключевые слова: ancient, architecture, authentic, balkan, balkan mountains, balkans, beautiful, bulgaria, color, countryside, culture, environment, ethnographic, europe, forest, garden landmark, hill, historical, history, houses, kotel, landmark, landscape, medieval, mountain, museum, natural, nature, outdoor, panorama, peninsula, sightseeing, sliven region, stara planina, terrain, tourism, town, travel, tree, view, village, weather, wood, wooden, yellow,