Building the World's Longest Undersea Railway - The Channel Tunnel Story | Spark

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Published on ● Video Link: https://www.youtube.com/watch?v=C_YT8dIwpQk



Duration: 52:30
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Reveal the epic challenges faced by over 13,000 workers, from battling the elements to overcoming technological hurdles, culminating in the completion of a colossal collaboration connecting Britain and France.

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