Contractors renovating a historic home in Belgium stumbled upon the entrance to a secret tunnel identified by archaeologists ...

“This is the mine entrance here,” he said. “That actually was a shaft that went down 200 feet into all these tunnels that crisscrossed the whole region.” The Hocking Valley Coalfield in ...

In today's video, we return to a massive talc mine we explored previously, pushing deeper into the tunnels than before. We begin at the familiar entrance and head down a steep haulage way, passing ...