Floyd Collins got trapped in a Kentucky cave 100 years ago this week, an incident that led to the creation of Mammoth Cave National Park.

But many questions remain about these enigmatic formations, says Campos. Researchers call these caves giant palaeoburrows and most are concentrated in Brazil, with a few in Argentina, says ...

Since its discovery, Son Doong has captivated the world with its enormous size and unique cave formations that are unmatched anywhere. The Phong Nha - Ke Bang National Park currently records 2,954 ...

Why it's awesome: Deep inside one of Gabon's cave systems lives an unusual population of orange dwarf crocodiles. They live in complete darkness, feast on bats and swim in liquid guano (aka bat poop.) ...

The cave is made from limestone rock formations, which were compacted 550 million years ago. Over time, acidic water that flowed into the cave through cracks dissolved parts of the rock ...

Nothing was touched until this process was finished. (Courtesy of John Foster, Utah State Parks) Formations inside the cave. (Courtesy of John Foster, Utah State Parks) Tom Howells (Utah Field ...

Thus, if these rings formed annually and without interruption the bone at the centre became the nucleus of the cave formation about 1,400 years ago.

An international team of researchers has suggested a "wild" new theory to explain the creation of these mysterious ancient ...

Little City of Rocks in Idaho offers an otherworldly landscape with unique rock formations and is ideal for hiking and camping. With An Underground Cave And Crystal Springs, Formation Springs Preserve ...

Vasquez Rocks in Southern California, formed from volcanic activity, are a popular tourist destination known for their unique geological formations and historical significance. Book A Boat To See ...

The name was chosen following a poll at the museum. To find such a skeleton in a setting like a wet cave, with all the typical formations like “cave bacon,” was unexpected as well, Foster said.