Engineers working to remove an old phone box from a railway station made an incredible discovery. Up to 2,000,000 people use ...

What should Cincinnati do with its unused subway tunnels? They asked ... "This proposal offers a vision that integrates modern functionality with the historical charm of the Race Street Subway ...

This lining eventually grows into a strong, waterproof tunnel -- perfect for your subway! The cut and cover technique is another, equally effective way to build a shallow subway tunnel beneath the ...

While NYC’s cow tunnels are perhaps the most famous, they were not unique to the metropolis. Around the world, farmers and ...

What if Cincinnati's old subway tunnels became an underground food hall and art market? Or canals for kayaking? Or speakeasy spots? The city asked for ideas on what to do with the unused subway ...

The furry animals entered the Central Subway tunnel before dawn on January 27 and led baffled employees on an underground journey for more than one mile. Early morning workers on board ...

A large portion of San Francisco Municipal Transportation Agency's Central Subway closed for repairs starting Wednesday because of water seeping into the tunnel. The tunnel will be closed between ...