Denmark is building an $8.2 billion tunnel to Germany, across the Baltic Sea. The Fehmarnbelt, a thin, shallow channel in the Baltic sea, separates Scandinavia from mainland Europe. Denmark is spanning it with a massive, 18 kilometer long immersed tunnel, featuring a 4-lane highway and 2 rail lines. This tunnel will increase transport efficiency between Europe and Scandinavia, while positively affecting the environment. By its completion in 2029, it will break world records and improve the economies of the region. If you enjoyed this video, please make sure to leave a like!

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