The region is also considered as the birthplace of Christianity. At the cave church of St. Peter, Jesus' followers were called Christians for the first time. Antakya was among the five major episcopal sees of the Roman Empire with Rome, Constantinople, Alexandria, and Jerusalem. In addition to be today’s multicultural melting pot of diverse cultures, the city is the most important Christian pilgrimage site in the region. Besides the cave church of St. Peter, the popular touristic attractions are the Archaeological Museum with its rich Roman mosaic collections, the Titus Tunnel, and the cypress and laurel forests of Harbiye.