10. Denmark’s Great Belt Bridge
Situated between Funen and Zealand, two Danish islands
Founded: 1998 for the East Bridge and 1997 for the West Bridge
Expense: $3 billion *
Known affectionately as the “Storebaelt Bridge,” this marvel of modern engineering connects the Danish islands of Zealand and Funen. The project, which included a tunnel and two bridges (the East Bridge, finished in 1998, and the West Bridge, finished in 1997), cost about $3 billion in total.

Denmark’s Great Belt Bridge ©Henrik Sendelbach/Wikimedia Commons
The East Bridge, a suspension bridge, holds the title of the third longest in the world, with a free span of 1,624 meters. It’s not just a crucial transportation link; it’s also a stunning architectural achievement that has boosted Danish national pride and tourism. The bridge dramatically reduces travel time across the country, symbolizing Denmark’s commitment to connectivity and infrastructure.
