The national park of Zhangjiajie in central China is famous for the towering sandstone pillars that inspired the alternate universe in the 2009 blockbuster “Avatar.” But in recent weeks, the area has become known for its trash-filled caves. #zhangjiajie #china #environment #caves #avatar Read the story here: nyti.ms/44eLg6D Subscribe: bit.ly/U8Ys7n More from The New York Times Video: nytimes.com/video ---------- Whether it's reporting on conflicts abroad and political divisions at home, or covering the latest style trends and scientific developments, New York Times video journalists provide a revealing and unforgettable view of the world. It's all the news that's fit to watch.