That gust of cool air is what led two National Park Service employees to stumble upon Crystal Cave while fishing at a nearby ...

And tucked away in the southwestern corner of Missouri, in the small town of Noel (pronounced “Nole,” not like Christmas), Bluff Dwellers Cave stands as one of the most spectacular examples of ...

The southwestern corner of Missouri might not be where most people imagine finding a portal to another world. But there it sits, tucked away in the town of Noel (pronounced “Nole,” not like Christmas) ...

Hundreds of archaeological sites exist in the cave, including evidence of America's first settlers, Mayan culture, and extinct animals. Click here to read World's Largest Underwater Cave Discovered.

Lava tubes and caves exist on Earth, and they have provided refuge to voyaging humans from intense weather for almost 10,000 years. The cave discovered on the moon is likely to be very similar to ...

U.S. Border Patrol agents discovered a sophisticated underground tunnel between Tijuana and San Diego, equipped with lighting, ventilation and tracks for narcotics smuggling.

DOC ranger Sebastian Doak has been helping with the conservation of Nelson cave spiders for three years. He explained the species inhabits a space around 10 to 30 metres from cave entrances.

FAYETTEVILLE-- State Rep. Kendon Underwood, R-Cave Springs, said in a news release Wednesday he has filed a formal complaint against Fayetteville accusing the city of violating Arkansas state law ...

The “unusual” Nelson cave spider is an ancient species and New Zealand’s largest native spider with legs over 5 inches long, according to officials.

Most parks are free to enter all of the time, approximately 100 out of 430+ national parks charge an entrance fee. With at least one national park in every state, no one is too far from an adventure.

Jordynne Grace has herself a new theme song and fans inside the WWE Performance Center for Tuesday night's episode of NXT were very verbal with their disapprova ...