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Inside the $20trillion Transatlantic Tunnel That Would Link The US to the UK in Under an Hour
With an estimated cost of £15.6 trillion (approximately ... For perspective, this undertaking dwarfs the Channel Tunnel, which connects England and France with its 23.5-mile stretch.
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The world's longest underwater tunnel that links two islands and cost £5.6bn
If asked which underwater tunnel in the world was longest, you'd be pardoned for proposing the Channel Tunnel ... The tunnel cost approximately £5.6 billion to construct and links Japan to ...