Head south to the region known to the Romans as the Province of Arabia, starting with its capital, Bosra, the ancient city built entirely of black basalt stone. Visit its Cathedral, the Grand Mosque, and its Roman amphitheatre, the best-preserved in the entire Mediterranean world. Continue to neighboring Qanawat, with its oak grove and Roman basilicas, Shahba, home of the Roman Emperor Philip the Arab, and Suweida, famous for its museum which contains one of the finest collections of Roman mosaics in the world.