In the 1930s, workers bored a 13-mile tunnel beneath Mt. San Jacinto. Here's a look inside the engineering feat that carries ...

Train journeys are often hailed as one of the most efficient and serene ways to travel, with tunnels playing a pivotal role in navigating through hills and mountains. However, there's one tunnel ...

squeezing the earth in at the shield's face. Tunnel workers gather the muck and dirt as it pours in. They toss the dirt on conveyor belts, which carry the excess soil out of the tunnel.