The world is one step closer to solving this historic treasure hunt. Experts dispute whether the long-fabled Nazi gold train ever existed, but many insist that it simply hasn’t been unveiled since going missing some 80 years ago. Now, a new clue has re-launched the search. Polish officials received a letter that allegedly had the location information on April 23. The letter’s writer, who asked to remain anonymous, claims he found “camouflaged train carriages” in a tunnel near the city of Wa?brzych. 3 A tunnel that is part of Nazi underground complex on October 20, 2015 In Walbrzych, Poland. Getty...