[null and void]

Interesting. I'd go with Jerusalem and NYC based on that, or perhaps Rome and NYC.

Although Wells fairly described London as the great Mother of Cities, NYC is a better candidate IMHO. Besides being a world financial and cultural center it is the home of the UN.

It is also the world's largest Jewish city. Rome and NYC. Nominal homes/hearts of Judaism and Christianity.

[editor-surveyor]

But the head of secular Mystery Babylon lives in London, and makes all of her calls from there.

NYC is just one of her puppet cities.