Son Doong Cave - the largest cave in the world in Quang Binh province has been voted by BBC as one of the most beautiful caves in the world.
Son Doong Cave was discovered in April 2009 and published in July of the same year.
Son Doong is bigger than Deer Cave in Malaysia's Borneo Island, which is considered
The world's largest cave.The cave is 4km long, 18 meters high.
The crystal cave in Mexico was discovered in 2000. Photo: National Geographic.
Waitomo caves, New Zealand, are home to millions
Firefly Arachnocampa. Fireflies spread silk on the ceiling of the cave.
Then they hang and glow. Photo: Waitomo Glowworm Cave.
Thousand Buddha Cave in China. This is the largest repository of Chinese Buddhist sculpture, with 2,000 sculptures and paintings. Photo: Dbimages / Alamy.
Spruce house in Colorado State, USA. In the 13th century, the Anasazi people were
building 120 rooms, 8 ceremonial rooms in cliffs with a length of 66 meters and a depth of 27 meters.
Photo: Courtesy of NPS.
