A Jungle Growing Inside the World’s Largest Cave Deep inside Vietnam’s Son Doong Cave, entire forests grow beneath enormous limestone walls. Natural skylights

A Jungle Growing Inside the World’s Largest Cave Deep inside Vietnam’s Son Doong Cave, entire forests grow beneath enormous limestone walls. Natural skylights formed by collapsed cave roofs make this underground ecosystem possible [📷](https://pbs.twimg.com/media/HTNpVBWXoAA2ac3.jpg) [📷](https:/…