Engineering From Above 1x04 — Record Breakers

Revealed from above; a massive bridge spanning a gigantic gorge in France; a record breaking outdoor elevator in China; and the world's longest tunnel carving its way deep beneath the Alps.

• Starts2:03 AM · Fri, Sep 4 · UTC
• WhereHistory, United States
• EpisodeSeason 1, episode 4
• Runtime62 min
• NetworkHistory
• LanguageEnglish

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