The rugged geography, dense population, and arid nature of Southern California has created the need for some of the most unique and complex tunnel systems anywhere in the world, and over the last ...

Located in Australia lies a quirky underground town in the heart of the desert that is surrounded by gems worth millions. Known as the "Opal Capital of the World" Coober Pedy is a town and mining ...

Big Bend Tunnel is a decommissioned tunnel on the mainline of the CSX Corporation's rail line through southern West Virginia west of Talcott, West Virginia. According to legend, folk hero John Henry ...

Weardale Lithium has secured a unanimous resolution to grant planning permission from Durham County Council to build the UK's largest lithium extraction facility. Rio2 Ltd. has announced the official ...