IDF took ABC News to a Hamas tunnel complex where they say hostages were held. KHAN YOUNIS, Gaza -- Aboard the shockingly loud Leopard APC, the Israeli army took us through the ruins of eastern ...

Last month, in February 2025, the first precast concrete tunnel sections, called elements, left the factory in Rødbyhavn, on the Danish side of the tunnel, completing Part One of a groundbreaking ...

Thirty-one men working in a massive underground tunnel in Los Angeles were rescued Wednesday night after a portion of the structure collapsed, officials said.

Assaulting the Gaza tunnel complex will be messy and dangerous. A new generation of smart drones can navigate, find and attack targets underground.

On the shores of the Baltic Sea, in the south of Denmark, a vast engineering marvel is taking shape — piece by giant concrete piece — that, when finished, will drastically redraw the road and ...

The Fehmarnbelt tunnel may not have grabbed the popular imagination in the same way as the Channel Tunnel between Britain and France did more than 30 years ago, but this structure is just as ...