It's time to dust off that old tin foil hat. Former president John Fitzgerald Kennedy toured around Europe and Germany after World War II had ended as a foreign correspondent. JFK kept a log of his travels and wrote down his thoughts in this exclusive and super rare diary, the only one that the former president ever wrote. The 61-page collection of memoirs, dated from 1945, is going up for auction for the 100th anniversary of JFK's birth, but it's not the sale that's so interesting - it's the content of the journal that might leave you scratching your head.

The travelogue contains many interesting thoughts on the devastation of Germany and life under the Russian occupation, but a few lines in particular are causing some commotion. Before the death of Adolf Hitler was confirmed, the JFK speculated that the Fuhrer could have remained alive after the end of the war. Conspiracy theories abound that Hitler didn't actually die in Berlin, but that he escaped via submarine, either to Argentina or even to a secret Nazi underground base in Antarctica. However, evidence for these theories appears to be scant and most historians deny this version of events, being relatively certain that Hitler committed suicide with his love Eva Braun in a Berlin bunker after it became clear that the Nazis had lost the war.

Nazi Germany's aggressive expansion was the main initiator of the violence which would engulf the entire globe in what would become known as World War II, or the Great Patriotic War in Russia. Over 60 million people lost their lives in circumstances brought about by the war.

We're not sure if JFK was present at the Roswell incident or if his assassination is in any way connected with his writings on Hitler, but it certainly does give some food for thought. All kidding aside, JFK's memoirs are a unique piece of history and detail the thoughts of the future president at the ripe, impressionable age of 28.