UK's new £2.2bn tunnel reduces tolls to 75p but there's a major catch
The controversial Silvertown Tunnel is just months from completion. But, a discount knocking down toll prices to just 75p are ...
Archaeologists Followed a Sketch by Leonardo da Vinci. It Led to Secret Tunnels Under an Ancient Castle.
An underground tunnel network long rumored thanks to drawings by Leonardo da Vinci under Milan’s Sforza Castle are proven to ...
Cincinnati's abandoned subway tunnels: Here are some of the ideas to revive them
Cincinnati asked architects and designers to submit ideas to repurpose the city's abandoned subway tunnel system. The Enquirer reviewed all proposals.
Norway’s Incredible Ship Tunnel Plan Is Back On Track
Following delays, Norway is pressing ahead with plans to build the world’s first full-scale ship tunnel. It should boost tourism along the coastline.