>The tallest buildings aren't in the City, they're in Canary Wharf, a privately owned near-island with 24-hour guards at all entry points, and barriers that go up on the roads at night.
Not to nitpick but this isn't strictly true. The tallest building is in neither but very close to the City, then the 2nd tallest is in Canary Wharf but the third and fourth are definitely in the City again. You have some in the Wharf and some in the City after that but I am not sure if the difference regarding skyscrapers in the 2 parts is very relevant or explicit anymore.
Not to nitpick but this isn't strictly true. The tallest building is in neither but very close to the City, then the 2nd tallest is in Canary Wharf but the third and fourth are definitely in the City again. You have some in the Wharf and some in the City after that but I am not sure if the difference regarding skyscrapers in the 2 parts is very relevant or explicit anymore.