astrodidact: This underground cave system is so large, it has own weather system Explored in its entirety just last year, Er Wang Dong (meaning “Second Royal Cave”) is an enormous cave system in the Chongquing province of Southwest China. With passages

astrodidact: This underground cave system is so large, it has own weather system Explored in its entirety just last year, Er Wang Dong (meaning “Second Royal Cave”) is an enormous cave system in the Chongquing province of Southwest China. With passages

tags: Persistent-Platypus,

from: https://persistentplatypus.tumblr.com/post/95204920935