1.Rome on the Tiber
2. Constantinople.
3. Moscow.
Their internal prophecy says “There will not be a fourth”.
Lots of old Orthodox prophecy about stuff like that. I can thank the old Orthodox people here on FR for opening my eyes to it.
Look to see Hagia Sophia in Istambul returned to the Orthodox Church. Fully restored and offering services. Look to see Russia funding, restoring Orthodox Churches in the Middle East and reaching an accord with the Coptic Pope in Egypt. Look to see restoration of Orthodox Churches in Alaska and outreach to the Eskamos. There will be an Orthodox push to convert the Islamic people to Christ as well. There may well be Missionary work to convert the people of Europe who have falled away from religion.
That’s tricky, because first was Jerusalem, then Antioch, then the three Metropolitans of Antioch, Alexandria and Rome. (Though some say that Alexandria was dominated by Gnostic Christians). Then Nicomedia in Anatolia was the center of the eastern Roman Empire, Nicaea and Byzantium, later Constantinople.
After Hadrian’s siege of Jerusalem (c.133), Caesarea became the metropolitan see with the bishop of Jerusalem as one of its “suffragans” (subordinates). Then Cyprus, Damascus, Thessaloniki Greece, and Cyrene Libya.
Rome came into play about the year 50, but as *a* center of Christianity, not *the* center, until perhaps 300.
There were a dozen other contenders, some that were wiped out by Muslims, others of greater of lesser importance.