Travelers looking for a unique art installation won't believe their eyes when they head to Tennessee to explore this ...

Hang Son Doong is the world's largest known cave, with enough space in some of its passages to fly a Boeing 747 airplane ...

longest, and wildest caves. At dusk, a swarm of bats disperses to hunt in the rainforest surrounding Deer Cave. One of the planet’s largest underground passages, it holds more than two million bats.

In 2009 a team of British cavers went on an expedition deep within the jungle of central Vietnam To their amazement they discovered an enormous cave which they believe to be the biggest in the ...

Hang Son Doong, the world's largest cave in Vietnam, was discovered in 1990 and is a breathtaking natural wonder. Formed over millions of years, this massive cave features towering stalagmites ...

Explore Mammoth Cave National Park, the longest cave system on Earth, featuring the richest known habitat for cave wildlife in the world. It may be difficult to think of caves as spacious and grand, ...

The collection of "very rare" cave pearls includes examples that were found to contain archaeological artifacts—a world first ...

Mammoth Cave is the longest cave system in the world that we know about. More than 400 miles (643km) of the network have already been explored, and geologists believe there’s hundreds more miles ...

The Shuanghe Cave has a total length of 437.1 kilometers, making it the longest cave in Asia and the third-longest in the world. Follow China.org.cn on Twitter and Facebook to join the conversation.