World War II was the largest, and deadliest, conflict in human history. From 1939 until 1945, more than fifty nations engaged in harrowing combat--and during that time, a number of intriguing and persistent mysteries were born. Nearly eighty years la... (more)ter, curious stories about everything from lost gold to secret societies and highly-advanced technology remain unexplained. Can new information help us better understand the strangest tales of the Second World War?