In the hardest working part of Coketown; in the innermost fortifications of that ugly citadel, where Nature was as strongly bricked out as killing airs and gases were bricked in; at the heart of the labyrinth of narrow courts upon courts, and close streets upon streets, which had come into existence piecemeal, every piece in a violent hurry for some one man’s purpose, and the whole an unnatural family, shouldering, and trampling, and pressing one another to death; in the last close…
There are no more uses of "citadel" in the book.
Show samples from other sources
If the citadel falls, all is lost.
The New York Stock Exchange is a citadel of capitalism.