Drone footage is offering a first look at a site where treasure hunters are digging for a buried Nazi train that could contain 250million worth of gold and other riches. With the dig gaining headlines around the world, the site in Walbrzych, Poland, has been sealed off to the prying eyes of the public, and the only way to get a glimpse of it is from high above. There is no guarantee the so-called'Nazi gold train' is buried there or even exists, but two explorers believe it is nearly 30ft below ground in a railway tunnel. Workers have set up fences and privacy screens to keep the public's prying eyes away In addition to gold and gems, Piotr Koper and Andreas Richter believe the site may have been used to hide the bodies of thousands of forced labourers. It could take up to 10 days for the site to be excavated.