Do the maps of London, New York and Seoul actually match up (at least partly) to the real locations?

I was planning a trip to London (real life) and I checked my route on Google maps to find a road that looked kind of close to part of the TSW map. I then tried looking up Ealdwic out of curiosity and while that place doesn't exist there is an Aldwych which vaguely matches up apart from the hidden underground part.
Was just wondering if anyone else had found any similarities themselves.
(I guess when I go on my trip I'd better keep an eye out for bees lol)