2077000
9781590781760
Beneath the streets of London, Paris, New York, and other cities lie massive, underground worlds of tunnels and trains, transporting millions of people. Underground railways, or subways, are an engineering marvel. But why were they built? And how?Brimner, Larry Dane is the author of 'Subway The Story of Tunnels, Tubes, and Tracks', published 2004 under ISBN 9781590781760 and ISBN 1590781767.
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