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Watch Modern Marvels Season 3 Episode 3 Online

  • 8.5/10
  • COUNTRIES: United States of America
  • Subtitles: English

There is no more potent demonstration of man’s resolve than the design and construction of tunnels–avenues that slice through a conspiracy of elements in the single-minded determination to connect two points. Whether underwater, blasted through solid rock, or negotiating the shifting strata of earth’s unstable crust, we explore the design and engineering of famous tunnels…and the motivation behind them.