Underground (1976)

Macaulay's 1976 tour of what lies beneath an ordinary city intersection: the foundations, columns, cables, pipes and tunnels that keep the buildings standing and the water, power and sewage moving. It answers the question every child asks when the street is dug up, and plenty of adults never got an answer to. The cutaway drawings make the hidden layers visible, which makes it a natural companion to Engineering in Plain Sight for anyone who wants the street-level view and the buried one side by side. Some of the technology is dated, but the principles of foundations and drainage have not changed.