Subway, History, Transportation, Cities, & Facts

Subway, underground railway system used to transport large numbers of passengers within urban and suburban areas. Subways are usually built under city streets for ease of construction, but they may take shortcuts and sometimes must pass under rivers. Outlying sections of a system usually emerge

Connecting the Windy City: August 4, 1902 -- Chicago Subway

Subway, History, Transportation, Cities, & Facts

History of NYC subway cars, from steam engines to open-gangway

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London Underground: Down, Not Out, in the Great Subway in World War II

History of NYC subway cars, from steam engines to open-gangway

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