Police investigating 2nd possible cross-border tunnel
Police in Chihuahua, Mexico, say they are investigating social media claims of a possible second illegal tunnel between El ...
Digging in to construction of how tunnels are built
There are 570 highway tunnels in the United States just for large roads. Nehemiah Mabry, an engineer and CEO of Stem Media ...
Malta’s Vast WWII Tunnel Operations Made More Accessible Than Ever
Built on a limestone foundation, Valletta housed defense systems in deep tunnels during WWII that saved Malta and Allied ...
Gateway awards $1.8B to dig a key part of the new rail tunnel between NJ and NYC
Complicating the Gateway project are the unknowns underground, from an 1800s-era bulkhead supporting Manhattan to a former landfill on the path.
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GDC Awards Manhattan Tunnel Project Contract
Frontier-Kemper-Tutor-Perini JV on Feb. 3 landed the $1.8 billion Manhattan Tunnel Project contract from the Gateway ...
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Leonardo da Vinci's drawing reveals secret network of tunnels beneath Sforza Castle
In a twist worthy of a Renaissance mystery, Leonardo da Vinci's sketches have revealed hidden secrets beneath the Sforza ...
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 ...