Ключевые слова: ancient, archeological, archeology, architecture, brick, bulgaria, byzantine, camels, destinations, diokletian, diokletianopolis, europe, fortification, fortress, hisar, hisaria, hisarya, hissar, hissaria, hissarya, historical, history, landmark, mineral water, mountain, outdoor, park, plovdiv, plovdiv region, remains, resort, roman, ruins, sight, sights, sightseeing, spa, sredna gora, stone, structure, the camels, thrace, tourism, touristic, town, vacation, wall,