World’s Largest Cave- Son Doong Cave, Vietnam. This picture is not edited in any way. It is taken inside the “Son Doong Cave”- Earth’s largest cave known in existence. The cave is more than 200 meters high, 150 meters wide and reaches over 5 kilometers.
Hang Son Doong skyhole by John Spies. The Son Doong Cave in Vietnam is the biggest cave in the world. It's over miles long, has a jungle and river, and could fit a 40 story skyscraper within its walls. It was discovered by modern man 5 years ago.