After learning that the beloved Tunnel Trail had recently reopened, I decided to try hiking one of my favorite frontcountry ...

Many cities across the world maximize the use of valuable land on earth’s surface by taking advantage of the space underneath for bypassing floods. This video discusses some of the challenges and ...

Take a kayak through the mangrove tunnels, and you’ll feel like you’ve entered another world. It’s like being in a scene from ...

Colorado state officials and the Union Pacific Railroad reached a tentative agreement on the future of the 100-year-old ...

The completed section of tunnel has a diameter of 55.8 feet (17 meters), and it has 500 pipe rings of underwater shielding.

Moles aren’t all bad – they aerate the soil, deposit natural fertilizer and eat grubs that can harm your landscaping. Unless you have acreage to spare, the tunnels created by moles can be unsightly ...