Im sure someone has been awake in the Vatican for a long time.

There are churches where people have had round-the-clock vigils for over a century.

Any… Train station? Airport? Police station? The White House? Emergency call handling centres? Hotel reception? etc etc

And that’s just for the young country of the US.

The Vatican is a good shout. Also the Tower of London which has had a castle in its current location since 1068 and has been occupied continuously ever since.

My newborns bedroom certainly seems like a strong contender despite only being 10 weeks old

How can USAians be so dense? How old is the pentagon? How old is the USA? Do you really not know anything about history outside of the USA?

I'm sure the London government district, or some government or religious building in China, Japan or Russia easily beats it.

The forbidden city in china?

What's "bulling"?