Grand Central Madison opened two years ago as the largest passenger rail terminal built nationwide in 67 years, ...

Italy's Sforza Castle includes a underground passage that linked the Duke of Milan to his wife’s tomb.

The earliest tunnels in Southern California were built for shelter, or mining purposes, but as civilization encroached, the ...

A group representing informal miners in South Africa says least 100 men who were mining illegally in an abandoned gold mine ...

Building The Most Amazing Underground Water Slide in 125 days Attempt ... has been solved after 52 years - and she's alive The best WWI movie ever made, based on data—plus, see if your favorite ...

The Israeli Ministry of Defense has released details — and imagery — of a dramatic commando raid into Syria, which targeted an underground missile production facility, back in September. The raid, ...

Edith, Flora, Kipling, Harold, Archibald and Ernest are the latest recruits for West Midlands Police - as part of their dog unit. The names of the six cocker spaniel puppies have been revealed by ...

The huge rail-connection project known as The Portal that is being developed to connect deep under the Salesforce Transit Center in downtown San Francisco has come as far as it has to a large ...

A scale model of Giant Mine compares the mine's chambers, which store arsenic trioxide, to a building in Yellowknife. The pink chamber is already frozen, the white one is not, and the Precambrian ...

The Tianshan Shengli Tunnel in China's Xinjiang. Image courtesy Seetao On December 30, China completed the construction of the world’s longest expressway tunnel, the Tianshan Shengli Tunnel, located ...