"When Nazis looked to flee Europe with stolen art, gems, and gold in tow, certain "neutral" countries were all too willing to assist them. By the end of January 1945, it was clear to Germany that the war was lost. The Third Reich was in freefall, and its leaders, apart from those clustered around Hitler in his Berlin bunker, sought to abscond before they were besieged. But they wanted to take their wealth with them. Their escape routes were diverse:...