This is the hardest, slowest way to dig a tunnel through a mountain. It would take you more than 80 years to dig a mile-long tunnel with hand tools!

In the early decades of the 19th century, London was facing a major problem. The city had become the world's busiest port, but in order to transport goods from the docks to the heavily-populated ...

Tunnels may not be glamorous, but there are few things more satisfying than honking your car’s horn when driving in a tunnel bored through a mountain. The urge to test the acoustics of a car horn in a ...

The rare bit of good news for the much-maligned project followed the agency's investigation into the leaks, which were revealed last September after water broke though a faulty wall panel in the ...

A colossal project to reduce traffic in the underground tunnels connecting the Virginia cities of Norfolk and Hampton just had a big breakthrough — literally. Since 1957, the two cities have been ...