Switzerland has more than 1,400 tunnels, with total tunnel and gallery length already above 2,000 kilometers. That includes ...

This video explains three essential measurements used when laying out a house, helping ensure accuracy and proper alignment from the start. Why do these numbers matter so much? Message to Ken Burns: ...

Next year, the first modern tunnel-boring machines ever used in New Jersey will arrive in North Bergen to begin drilling the first mile of the $16 billion Gateway Tunnel through the rocky Palisades.

Tunnels are used to carry traffic through some of the most extreme terrain on the planet and they help ease journeys with reduced travel time. While most tunnels offer a short underground burst of ...