Tunnels

Digging London's Newest Tunnel

Europe's biggest infrastructure project is halfway done.

Inside China's Plan to Build the Longest, Most Expensive, Most Dangerous Underwater Tunnel

At 76 miles long, it would surpass the combined length of world’s two longest underwater tunnels and cut through two fault lines.

Tunnel Opening of the Day: Bypassing Highway 1's Least Reliable Stretch

Today marks the end of roughly 75 years of on-again-off-again road closures in a suburb of San Francisco.

There's a Lot More Skeletons Where These Came From

Modern London was built on top of a large number of plague pits, and the city's thirst for more space means digging won't slow down any time soon.

With Big California Water Project, Governor Wants to 'Get Shit Done'

Jerry Brown is taking a blunt approach to a controversial water plan.

An Art Exhibit Underneath London Made of Entirely of Fungus

"The Majesty" is an installation in an abandoned London railway vault that's crawling with slow-moving, spore-spitting mold.

The Misunderstood Science Behind Fears That a Subway Tunnel Could Blow Up Beverly Hills High School

Earthquakes, underground chemicals, hysteria and emotion all collide in L.A.

A New Vision for D.C.'s Abandoned Streetcar Tunnels

Plans are once again underway to bring Dupont Circle's tunnels back to life—but will the neighborhood get behind it?