The Son Doong Cave in Vietnam is the largest cave in the world. It’s more than 9.5km long, has a jungle and a river and could fit a 40-storey skyscraper inside. But no one knew that until it was first explored four years ago. Public tours will begin in 2014.
Read more and see the rest of the stunning photographs: http://huff.to/1e2kLof via Huffington Post. Images: Getty — with Hetansh Mehta, Shairazi Iktiaruddin, Divine Grace Balintong, Zam Adris, Lisa Batrisyia, Ariela Adris, Savita Rajkumar, Vicky Thapa, Jerico Denolgo Magos and Ris Adris.
(PS: I had never heard of jungle in a cave, since it is supposed to have very little sunshine.)