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 ...

Currently, the CAVE (Cave Automatic Virtual Environment) systems are one of the best virtual reality (VR) immersive devices available for portraying the virtual environment. The CAVE gives the ...

Greek mysteries, strange phenomena and destinations that could qualify for an episode of “The X-Files” can be found all over Greece. Credit: Violeta Meleti /Wikimedia Commons/ CC BY-SA 4.0 Greek ...

A hidden environmental crisis is unfolding in ancient caves near China’s Zhangjiajie Forest Park, famed for its massive quartz-sandstone pillar formations, which are said to have inspired the ...

The hidden village on the Canary Islands built into a cave that tourists miss It's a place where sunlight bounces off turquoise water, fishing skiffs bob on ropes and the whitewashed walls glow.

The bustling streets and squares above conceal a labyrinth of over 800 caves, each echoing with history, while above ground you'll find England's oldest pub.

Half a mile below the surface of the earth, in a cave too hot to explore without an ice-packed suit, NASA scientist and Nat Geo explorer Penny Boston clambers around glassy crystals that are ...