Inside the 'secret' tunnels that run under Birmingham
Beneath the BT tower is an underground telecommunications exchange in Birmingham. The bunker, made up of vast concrete tunnels, was designed to keep Britain's telecommunications going if there was ...
HS2 construction 'at a peak' as viaduct finished
Efforts to construct HS2 have reached a peak with the completion of the first of 13 viaducts at a key rail junction, projects ...
The San Bernardino Sun4d
How some Southern California tunnels are still used, while others have vanished
Today, L.A. Metro’s subway tunnels connect some of the city’s most densely populated neighborhoods. There are many other ...
Hosted on MSN6d
Incredible new $7.9bn mega rail and road tunnel to be the world's longest
A brand new tunnel set to connect Denmark to Germany is underway. The 11-mile long passage is costing a huge $7.9 billion but ...