They were viewed very much like castles, I suppose: as crumbling, obsolete relics, with no real modern function other than as tourist attractions. But when the skies darkened and the nation called, both reawoke to the meaning of their existence. One shielded our bodies, the other, our souls.

World War Z: An Oral History of the Zombie War (ed. Broadway Books, 2006) - ISBN: 9780307351937