Bizarre Mysteries That Remain Unsolved to This Day

The Zodiac Killer

For several decades, the Zodiac Killer terrorized the San Fransisco Bay area, committing at least seven confirmed murders—although he claims to have killed 37. The killer sent taunting messages in code to the police and the newspaper, which offered chilling information about his identity and his victims. "I am not sick," he wrote in one letter. "I am insane." The case remains cold to this day.

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The More You Know

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  • Russia has a larger surface area than Pluto.
  • The chance of a coin landing heads-up is not 50-50
  • Clark Kent (Superman in DC Comics) is also a character in the Marvel universe, where he's actually just a mild-mannered reporter and nothing more.
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