Stretching 18km between Denmark and Germany, this €7bn immersed tunnel is the world’s longest road and rail link. By 2029, it ...

Living beneath the waves has long captured the imagination of dreamers, designers and explorers, inspired by tales like Atlantis. Today, with rising sea levels and a growing curiosity about what lies ...

Far below the waves off the coast of Brittany, France, divers have mapped a massive stone barrier that should not exist, at least not according to the standard story of early European prehistory.

The Fehmarn Belt Fixed Link is an immersed tunnel set to link the Danish island of Lolland with Germany's Fehmarn island.

Far off the coast of Brittany, a line of stone blocks lies hidden beneath the Atlantic, preserved where dry land once met the ...

The remarkable tunnel beneath the Baltic Sea, expected to become one of the world's longest underwater structures, is due for ...

Does an mini-Stonehenge stand underwater in Grand Traverse Bay, part of Lake Michigan? In 2007, looking for shipwrecks in this area, which was a busy 19th- and 20th-century maritime trade route, Mark ...

A team of researchers has recovered the deepest sample ever taken of the Earth’s mantle from a section of seafloor in the Atlantic Ocean. At more than three-quarters of a mile in continuous length, ...