The Atapuerca Mountains in northern Spain are home to the Sima de los Huesos, or "Pit of Bones," which has offered one of the ...

The intricate cave system perched deep in an isolated stretch of Spanish mountains contained the remains of an ancient and ...

Prehistory - The earliest explorers of the cavern were indigenous peoples, and there are pictographs and mescal pits at the cave entrance. They didn't explore very far, due to the huge drop-off ...

Beneath the island’s rainforest, explorers search for new discoveries deep within some of the Earth’s largest, longest, and wildest caves ... humid pit deep below Borneo’s rainforest.

While there is a lot to love about these caves, one thing really sets it apart and that is the insane drops that are present. One such drop is known as Fantastic Pit within Ellison’s Cave.

Carlsbad Caverns National Park brought in nearly $32 million to the local economy and supported 359 jobs, according to a National Park Service report from 2023. More in U.S.

The Natural Bridge Caverns are home to the biggest commercial cave system in Texas. Above-ground adventures include zip lining, a rope course, a maze, gem mining, shopping and dining. But the ...