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

The World's Largest Underwater Cave in Mexico is Filled With Ancient Mayan Treasures, Baffles Experts Explorers as a part of ...

Despite all those years of exploration, still each year, courageous cave explorers discover new tunnels and rooms underground and thereby stretch the known limits of the world's longest and ...

Take an otherworldly journey through Hang Son Doong, the world's largest cave located in Vietnam. The cave is more than 500 feet tall, 650 feet wide, and 29,500 feet long. Video courtesy of Ryan ...

Sistema Sac Actun is the world’s largest underwater cave system. Stretching an astonishing 215 miles, this submerged labyrinth of tunnels, caverns, and crystal-clear waterways is not only a ...

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.

The Extremes crew had trekked for two days through steep valleys covered in lush jungle to reach Hang son Doong cave. Set deep inside Phong Nha-Ke Bang National Park, it is one of dozens of caves ...

Mist sweeps past the hills of Phong Nha-Ke Bang National Park, its 330 square miles set aside in 2001 to protect one of Asia’s largest cave systems. During the Vietnam War, North Vietnamese ...

Israeli researchers say they have discovered the world's longest salt cave. The 10km (6.2 miles) of passages and chambers inside Malham Cave, overlooking the Dead Sea, were mapped out over two years.

the sound can be heard anywhere from within the cave system, which covers about 64 acres (260,000 square meters). That makes it the largest musical instrument in the world. We’ll save the ...

A popular attraction—and one of our favorite places on Kauaʻi—closed on Oct. 31, 2024. Makauwahi Cave Reserve, the largest ...