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Modern Marvels: Tunnels [DVD]
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This program is part of a series that celebrates some of the technological achievements of modern times. In this episode, the viewer goes underground to explore one of man's most ambitious undertakings: the engineering and construction of tunnels. Archival film clips, photographs, and interviews with those who worked on tunnel projects makes clear the dangerous nature of the structures, on which commerce has come to depend. ~ Rose of Sharon Winter
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