The Fehmarnbelt Tunnel, set to be the world's longest immersed tunnel at 18 kilometers, will connect Denmark and Germany, ...

A revolutionary 18 km long tunnel is being built under the Baltic Sea between Denmark and Germany, the “Femarnbelt”, which ...

A record-breaking tunnel is being built under the Baltic Sea between Denmark and Germany, which will slash travel times and ...

A renovation of a townhome in Tielt, Belgium, led to the discovery of a secret tunnel system under the historic structures.

Stretching 35 miles under the Alps, the Gotthard Base Tunnel is the pinnacle of tunnel engineering. More than just a ...