Beneath the metropolis

"The pulse of great cities may be most palpable above ground, but it is below the busy streets where we can observe their rich archaeological history and the infrastructure that keeps them running. In The Secret Lives of Cities journalist Alex Marshall investigates how geological features, archaeological remnants of past civilizations, and layered networks transporting water, electricity, and people, have shaped these cities through centuries of political turbulence and advancements in engineering ? and how they are determining the course of the cities' future" -- publisher website (April 2007).