Nada Tunnel in Kentucky offers a mysterious drive through sandstone where history, legend, and natural wonder all collide ...

The Gotthard Base Tunnel in Switzerland is the world’s longest railway tunnel, stretching more than 35 miles beneath the Alps. Opened in 2016, it was engineered to streamline European transport, ...

Lowering a highway in flash flood alley comes with obvious risks. So TxDOT's building a drainage tunnel wide enough to drive ...

The tunnel will take thousands of the more than 2 million trucks that cross the pass every year off the roads.

Italy and Austria are on the verge of completing the longest underground rail tunnel in the world. The €10.5 billion ($12.3 ...

Pennsylvania’s unique tunnel combines history, legend, and intrigue — a hidden spot locals still talk about today.

The expectation going in is that you better spend that money wisely,” said the leader of the $16 billion Hudson Tunnel ...

A new ERC tunnel safety exhibit gives kids a chance to learn real-world safety lessons in a space built just for them ...