The discovery of more than 100 prehistoric structures in the Cova Dones cave in Spain makes it one of the most significant prehistoric underground sites in the world. Archaeologists found stalagmites ...

On Sunday’s episode of The Excerpt podcast: Hidden beneath Earth’s surface are caverns and pathways that hold the secrets of our planet’s very beginnings. Even after decades of exploration, there are ...

While most people are preoccupied with what’s happening above ground in the Mount Shasta area, very few people think to venture underneath it. With towering mountains, epic hikes, cascading waterfalls ...

So many of the hidden spots in Mammoth Cave National Park lie beneath the surface. This popular park in Kentucky is home to the world's longest known cave system, and it draws thousands of visitors ...

Add Yahoo as a preferred source to see more of our stories on Google. Beneath the surface of an otherwise unassuming National Park, a labyrinth showcases hundreds of millions of years of geologic ...

Beneath its gently rolling hills lies Mammoth Cave, the world’s longest known cave system, offering a mystifying underground world of echoing chambers, cathedral-like tunnels, and prehistoric wonders.

SAN ANTONIO — A free chance to tour a part of the city's underworld that is rarely seen by the public, Robber Baron Cave, is coming up on April 9. The cave, located a mile south of 410 on Nacogdoches ...

At around 125 million years old, the Cascade Caverns cave is geographically young, but it obviously holds a lot of history. Spelunking through the entrance, your change in elevation is marked by a ...

Cave City, the home to Mammoth Cave National Park, is giving visitors reason to stop and explore. Cave City in Barren County is home to Mammoth Cave National Park. Over the years, the city has gone ...

Its most well-known attraction is an underground boat tour. The measure of a city's quality of life often comes down to its connection to nature. Right off Nashville Road in Bowling Green, steps away ...