China is planning the longest underwater tunnel ever built, a 76 mile link beneath the Bohai Sea that would cut travel times, boost regional GDP, and push engineering limits. This video explores why ...
The Ryfylke Tunnel is the longest undersea road tunnel in the world at present and stretches some 8.98 miles between ...
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A look at the world’s longest road tunnels and where they rank
Across the world, road tunnels have quietly stretched longer, dived deeper, and grown more ambitious, reshaping how people ...
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