The 7 Churches of Asia Minor circa AD 70: Ephesus, Laodicea, Pergamum, Phiaidelphia, Sardis, Smyrna, Thyatira.
Looks like they were there then, but not now.
And so what does that mean to you? All credited commentators recognize the symbolism of characteristics of the Church down through the ages. If you were to take everything in Revelation literally I can see how difficult it would be to make heads or tails out of it.