The exact cause of death and burial site of Genghis Khan is unknown, because all of the 2000 funeral guests and 800 soldiers were killed in order to preserve the secret.
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The world's longest traffic jam took place in Beijing, China. It was over 60 miles long and lasted 11 days.
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A blind American man taught himself to navigate using echolocation. His hobbies include hiking and mountain-biking, and he has now trained over 500 students in his ‘tongue-click’ technique.
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Mathematical proof that 1+1=2 takes 162 pages to explain in the three volume work “Principia Mathematica”.
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As of 2011, gamers have collectively spent over 6 million years playing World of Warcraft. That's almost as long as the existence of the human species!
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