Deep inside this system is the biggest underground room in America, and getting there is a 9-hour grind through stone, water, ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. McGinnis' nail tooth (Clavusodens mcginnisi) depicted hunting a crustation in a reef-like ...

Divers in Mexico's Yucatan Peninsula say they have discovered the world's largest underwater cave. Underwater archaeologists discovered last week that the cave system known as Sac Actun, located near ...

With over 4 miles and seven stories full of unique rock formations and water streams, this underground cavern is one of the largest cave systems in Missouri.

International research and highly-specialized divers are bringing an underground, underwater world to the surface ...

FILLMORE COUNTY, Minnesota (WCCO) — The Fillmore County countryside contains thousands of acres of green, lush farmland, but some people here believe what’s below the surface is just as beautiful.

Carlsbad Caverns National Park in southeastern New Mexico is home to 119 known caves, including North America's largest cave chamber, the Big Room. When you purchase through links on our site, we may ...

A rare bite into the past. The fossilized tooth of a newly discovered ancient shark species – dating back about 340 million years – has been unearthed in the world’s largest cave system, officials ...

When the Bluegrass State comes to mind, so does the Kentucky Derby and Kentucky Fried Chicken — but why not the countless scenic attractions the state has to offer? Home to the world's largest cave ...

THREE RIVERS, Calif. (KSEE/KGPE) – While the second-largest cave in Sequoia and Kings Canyon National Parks will be closed for 2024, officials say visitors can anticipate exploring the hidden wonder ...

AN AGREEMENT ON A NEW BUDGET HERE IN PENNSYLVANIA, FAYETTE COUNTY’S LAUREL CAVERNS WILL BECOME THE COMMONWEALTH’S 125TH STATE PARK, AND THE FIRST ONE THAT IS UNDERGROUND. IF YOU’VE NEVER VISITED IT, ...