How Engineers Survived Building the World's Longest Undersea Tunnel.

Discover the astonishing story behind the Channel Tunnel – the 31-mile underwater lifeline linking Britain and France against impossible odds.

In this video, we reveal:
🔹 How engineers drilled beneath the English Channel through treacherous geology and deadly floods
🔹 Shocking risks workers faced: fires, drowning, and budget disasters
🔹 Secret Cold War politics that almost sank the project
🔹 Revolutionary tech like TBMs (Tunnel Boring Machines) that made it possible
🔹 Why this "impossible" megaproject became Europe’s most transformative transport link
Featuring exclusive archival footage of the 1987-1994 construction and interviews with engineers who braved the depths.
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