Nestled in the Laurel Highlands region of southwestern Pennsylvania, this underground labyrinth is the state’s largest cave system, and boy, does it know how to make an entrance. When I first heard ...

Right next to a busy interstate sits a cave most people overlook - and for good reason. In this video, we explore the hidden entrance, the strange things we found inside, and why this spot might be ...

Crawling alone through tight, winding passages deep underground, he came across something no one expected - strange blue ...