The massive underground infrastructure project stretches nearly five miles from Glasgow Avenue to Foster Park, sitting 220 ...

New details emerge about the year-long pursuit of the Hamas terror chief, including his dramatic escape alongside Mohammed ...

When Lakota artist Marty Two Bulls Jr. looks at the Black Hills of South Dakota, he doesn’t just see its natural beauty. He ...

We estimated that in a group of around 2,000 workers involved in these Queensland tunnel projects, 200 to 300 would develop ...

In Tallinn, the capital of Estonia, there is a network of mysterious underground tunnels known as the Bastion Tunnels. They were built in the 17th and 18th centuries as part of a military defence ...

In a press release, researchers from Germany's Johannes Gutenberg University Mainz described their surprise upon finding these bizarre tubular tunnels in marble and limestone. "We were surprised," ...

Sunny Jim's Sea Cave in the La Jolla neighborhood of San Diego, California, has been an ocean destination for 123 years.

Incidents of accidental and suspect breaches of submarine cables in northern Europe and around Taiwan concern security ...