[BipolarBob]

Who was it written to?(Hint: They no longer exist).
Bigger hint - they didn't exist then because there weren't born then.
When was it written?(Hint: The Temple John measured was the one destroyed in AD 70.)
Bigger hint - temples can be rebuilt.
How old would those 2 witnesses be now?
Irrelevant if they are resurrected saints.
Many of the futurist scares melt away in the context of who the revelation was intended for.
Many of the futurist scares would increase if fully revealed.

[odawg]

When Christ died on the cross, the curtain hiding the Holy of Holies was split in half, signifying the end of the temple era. There may be a new temple built, but it can not be ordained of God; Jesus finished that aspect. I read the other day that an attempt to sew another curtain is in the works; that would certainly be a denial of Jesus Christ.

[PeaceBeWithYou]

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.