Ключевые слова: ancient, antiquity, archeology, architect, architecture, balkans, blue, bulgaria, city, civilization, classical, column, culture, entrance, exterior, fort, fortress, greek, hiking, history, kardzhali, kardzhali region, landscape, medieval, mountain, museum, old, past, perpericon, perperikon, range, rhodope, rocks, roman, ruins, scenics, sight, sightseeing, stone, structure, temple, thrace, thracian, tourism, tourist, trail, travel, vacations,