With a length of over 5 km, with sections up to 200m high and 150m wide, Hang Son Doong is large enough to accommodate an entire block of New York City, complete with a 40-story skyscraper. With a total volume of 38.5 million cubic meters, this easily surpassed Hang Deer in Malaysia, considered the previous record holder. The 80-meter tall tree was also surveyed, the highest ever seen.
Few people see inside Do Son Cave instead of standing on Mount Everest.