The Highway 99 tunnel in Seattle reopened to traffic three hours after a power outage forced a shutdown Thursday morning, the first time the 2-mile tunnel beneath downtown has ever completely closed ...

The Boring Company's Vegas Loop transports passengers in Teslas through tunnels beneath the Las Vegas Convention Center. Nashville is expected to get its own version of the tunnel system, connecting ...

A 2,000-year-old tunnel once used by Roman emperors to slip into the Colosseum unseen will open to the public this month, offering visitors a rare glimpse of the arena’s imperial backstage. Known as ...

Explore the world's most impressive megaprojects and their record-breaking features in this video. Discover the tallest tower, tallest bridge, largest airport, and longest train tunnel. China ...

We’ve known for quite some time that molten rock gouged enormous tunnels into the surface of the Earth, the Moon, and Mars. In fact, scientists have proposed that the vast lava tubes under the surface ...

To continue reading this content, please enable JavaScript in your browser settings and refresh this page. Preview this article 1 min The startup is talking with a ...

ROME, Sept 18 (Reuters) - Workers broke through a final, thin veil of rock on Thursday, opening an underground tunnel between Austria and Italy that will eventually become a high-speed rail line ...

ST. LOUIS – More than 30 feet below the ground in Forest Park sits a system of tunnels critical to the wastewater system in St. Louis. Those tunnels are part of the River Des Peres, where over four ...

Juggling work apps, video calls, and region-locked streaming content? Split tunneling could be the VPN feature that makes your online life a lot easier. I’ve been writing about technology since 2012, ...

Elon Musk's Boring Company will build a privately funded high-speed tunnel, the Music City Loop, connecting Nashville International Airport to downtown. The 10-mile tunnel aims to reduce commute times ...

Work on a Los Angeles County sanitation tunnel has been halted as investigators look into what caused it to collapse Wednesday evening, leaving 31 workers scrambling to make their way to safety. Los ...