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Engineers are building an 11-mile tunnel under the sea using giant 73,000-ton Lego-like blocks

Stretching 18 km between Denmark and Germany, this €7bn immersed tunnel is the world’s longest road and rail link. By 2029, ...
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This massive tunnel is being built under the ocean!

A massive tunnel is being built under the ocean to connect Denmark and Germany, allowing car travel in just 10 minutes. The ...