Along with underground adventures, Mammoth Cave National Park in Kentucky offers great hiking and kayaking, too.

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

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 ...

Tickets for Sequoia National Park's Crystal Cave 2026 season go on sale March 16. The 2025 season sold out quickly.

In 1879, a landowner and amateur archaeologist named Marcelino Sanz de Sautuola ventured into a newly discovered cave system in northern Spain. Hoping to find prehistoric tools, he kept his eyes fixed ...

Part of the adventure in luring your friends out to the high desert terrain in Northern California, where a valley floor spills from the northern backside of Mount Shasta, is that precious moment when ...

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 ...