In City and Cosmos, Keith D. Lilley argues that the medieval mind considered the city truly a microcosm: much more than a collection of houses, a city also represented a scaled-down version of the very order and organization of the cosmos. Drawing upon a wide variety of sources, including original accounts, visual art, science, literature, and architectural history, City and Cosmos offers an innovative interpretation of how medieval Christians infused their urban surroundings with meaning.