Singing Sand Mountains, Crescent Moon Lake, Dunhuang, Gansu Prov July 4, 2016 1200 × 443 China 11 – Silk Road 08 – Circus in the Desert The sand makes a soft moaning sound when it shifts, ancients believed it to be the trapped souls of those that perished in the dunes. Share this:TweetEmailPrintLike this:Like Loading...