the south gate known as the camels of ancient roman, fortifications in diocletianopolis, town of hisarya,bulgaria

ancient archeological archeology architecture brick bulgaria byzantine camels destinations diocletianopolis diokletian diokletianopolis europe fortification fortifications fortress gate gora hisar hisaria hisarya hissar hissaria hissarya historical known landmark mineral mountain outdoor park plovdiv region remains resort roman ruins sights sightseeing south spa sredna stone structure the thrace tourism town vacation wall water