Hocking Hills in southeast Ohio is one of the state’s most beloved natural gems. Its dramatic gorges, overhanging sandstone recess caves, and beautiful waterfalls are unforgettable. The area is best ...

An intrepid scientist and her team were the first to venture into the Wulff Land caves—and they found surprising evidence of Greenland’s prehistoric past. Paleoclimatologist Gina Moseley led a team of ...

Emerald Cave, a small grotto on the Colorado River, is accessible by kayak, canoe or paddleboard. The cave's green shimmer is caused by sunlight reflecting off the canyon walls and underwater algae.

Fall is one of the best times to crawl deep beneath the Earth's surface, and not just if you're preparing for hibernation. The cave is without a doubt one of the creepiest ecosystems on the planet, ...

Deep below the Earth's surface, rock and mineral formations lay hidden with a secret brilliance. Under a black light, the chemicals fossilized within shine in brilliant hues of pink, blue and green.

Crystal Cave in Sequoia National Park is reopening for guided tours after a four-year closure due to natural disasters. The cave, formed in 200 million-year-old marble, features unique geological ...

EDWARDS COUNTY, Texas – Special thanks to Geary Schindel, his volunteer crew of climbers, researchers and Texas Parks and Wildlife for this incredible experience. Right place, right time. That’s how I ...

The Kentucky Down Under Adventure Zoo is located just off Interstate 65 in Horse Cave, Kentucky. Guests can enjoy an array of animal exhibits and a 30-minute tour of the Mammoth Onyx Cave for the ...

Gerlinde Bigga does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

An Emirati-backed cement project threatened ancestral prayer caves. The community fought back. An Emirati-backed cement project threatened ancestral prayer caves. The community fought back. Lugadi ...