Deep below the rugged landscape of central China lies an engineering marvel the size of a 60-story building, boring chunks of ...

Did you know that the Gotthard Base Tunnel in Switzerland, the longest rail tunnel in the world, runs deeper than any other tunnel, reaching up to 2.3 kilometres (1.4 miles) below the surface? This ...

Several tunnels beneath Morgan Square were once used by banks to transport money. Other tunnels are believed to have existed ...

US federal agents have uncovered a sophisticated “narco tunnel” equipped with electricity and a working ventilation system ...

Still two years away from scheduled completion, the Project Director for the Hampton Roads Bridge Tunnel Expansion says 2025 ...