The top 10 unsolved cipher texts - 1 views
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dumessn on 29 Aug 14Many interesting ones in this list. I like the Kryptos at the CIA headquarters.
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aconn55 on 22 Sep 14Here's a list of 10 unsolved cipher texts throughout history, #2 is the Beale Papers covered in the chapter, #8 is Kryptos (the background of our website). Some date back as far as 1400 BC and some are more recent like the Zodiac Killer.