Germany and Denmark are separated by a strait of just 20 km, but getting from one country to the other by land involves a 160 ...

Every day, long-haul truckers and commuters pass through the George Wallace Tunnel, briefly slipping away from daylight and 40 feet underwater, until reemerging into downtown Mobile, Alabama. Since ...

One of the 20th century's most remarkable underground tunnels was engineered to endure powerful earthquakes while linking two ...

A project nearing completion in the Detroit area utilized a custom-built, diver-operated vehicle that can operate underwater and that replaced concrete liners for two raw water tunnels, eliminating ...

A feasibility study by German tunnel experts Herrenknecht has found that drilling the tunnel is "technically viable".

This incredible project took five years and cost an eyewatering £2.5 billion to build.

This video explores the construction of the Fehmarnbelt Tunnel, an 18 km long underwater tunnel in the Baltic Sea that has the potential to transform travel across Europe. Key segments include the ...

Every day, long-haul truckers and commuters pass through the George Wallace Tunnel, briefly slipping away from daylight and 40 feet underwater, until reemerging into downtown Mobile, Alabama. Since ...

A project nearing completion in the Detroit area used a custom-built, diver-operated vehicle that can operate underwater and that replaced concrete liners for two raw water tunnels, eliminating the ...