I've never read the books, but I believe the City of the Saved qualifies if anything does. The inhabitants are every human, near human, transhuman, et cetera ever. None of them can die. It something like the size of an entire galaxy, and there isn't anywhere else left.
He's the Doctor. He could be anywhere in time and space.I guess this is sort of low key, but I'm currently writing a novel and a minor location is Isambard, the Locomotive City. In an alternate history, the Panama Canal was replaced by the Panama Railway and when the number of goods being sent through continued to increase, Earth asked an alien construction company to figure out what to do. The alien company proceeded to build a huge Victorian city on rails that picks up ships and sticks them in cradles attached to the sides of the city. And the whole city is run by an A.I. called Kingdom Brunel.

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Ornate prose, put me off? He can't be any denser than Umberto Eco, can he? :D
ERROR: The current state of the world is unacceptable. Save anyway? YES/NO