Beneath the BT tower is an underground telecommunications exchange in Birmingham. The bunker, made up of vast concrete ...
Efforts to construct HS2 have reached a peak with the completion of the first of 13 viaducts at a key rail junction, projects ...
Today, L.A. Metro’s subway tunnels connect some of the city’s most densely populated neighborhoods. There are many other ...
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 ...