They come, not to see what London is, or even what it was, but to confirm a kind of picture-postcard view of both, all red telephone kiosks and fog-wreathed alleyways.
Anna Quindlen (b.1953), Imagined London: A Tour of the World’s Greatest Fictional City
CabbieBlog 
Anna was presumably talking about tourists, and she hit the nail on the head.
Best wishes, Pete.
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She forgot to mention black cabs.
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