Qiao Guohua patrols a 5-mile stretch of the Great Wall of China. Roughly a third of the wall's 12,000 miles have crumbled to dust, and saving what's left may be the world's greatest challenge in cultural preservation. Anthony Kuhn/NPR hide caption

toggle caption
Anthony Kuhn/NPR

China's Great Wall Is Crumbling In Many Places; Can It Be Saved?

  • Download
  • <iframe src="https://www.npr.org/player/embed/464421353/464533117" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Two of the names carved into the Great Wall, in this case near Badaling, China. Authorities hope to cut down on graffiti by giving tourists a designated spot to leave their marks. David Guttenfelder /AP hide caption

toggle caption
David Guttenfelder /AP