Explore Pennsylvania’s most unusual tunnel and learn the remarkable story behind it that locals still talk about today.

Tunnels are used to carry traffic through some of the most extreme terrain on the planet and they help ease journeys with reduced travel time. While most tunnels offer a short underground burst of ...

The Mitchell Point Tunnel is finally open to the public! But unfortunately you still can’t bike all the way there. You might recall a ribbon-cutting event back in November where the public was allowed ...

Mysterious micro-burrows in desert marble and limestone were probably made by microbes that lived millions of years ago. Exactly what kind of microbes bored into the rock remains unknown, as does ...

In the wide, scorching deserts of Africa, where time seems to stand still, scientists have stumbled upon a discovery that challenges the boundaries of our understanding. Deep down under the dark abyss ...

Access to the Gilman Tunnels from Forest Road 376 will be closed to motorized and nonmotorized traffic on Monday, Dec. 1, and ...