Here's how to plan a visit to Kentucky's Mammoth Cave National Park, which is home to over 400 miles of underground passages, plus rivers and hiking trails.

In Plato's Allegory of the Cave, Plato provides a timeless insight into how we are often "prisoners" of our mind, in that we are born into a world of "shadows", which we confuse with reality. Wisdom ...

This hidden Arkansas cave trail takes adventurous hikers deep underground to a breathtaking waterfall hidden inside a ...

Deep in Laos lies a four mile-long river cave—an underground cache filled with 65-foot stalagmites, gigantic rimpools, cave pearls and even (gulp) giant spiders. Though it opened to tourists in 2005, ...

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 ...

Evie Carrick is a writer and editor who’s lived in five countries and visited well over 50. She now splits her time between Colorado and Paris, ensuring she doesn't have to live without skiing or L'As ...

An 8,000-year-old skeleton discovered deep within a flooded cave system on Mexico's Caribbean coast is shedding new light on the prehistoric inhabitants of the Yucatán Peninsula. The remains, found by ...