Uncracked codes and ciphers

From what was a Wikipedia Category Unsolved Ciphers and is now included in Undeciphered Historical codes and ciphers - 'A list of unsolved problems that are, or are thought to be, codes or ciphers.'
*Beale ciphers 
*The Blitz ciphers
*D'Agapeyeff cipher
*D-Day carrier pigeon cipher
*Dorabella Cipher
*European Voynich Alphabet
*Fenn treasure
*Kryptos
*Markovian Parallax Denigrate
*Papyrus Oxyrhynchus 90
*Ricky McCormick's encrypted notes
*RSA Secret-Key Challenge
*Shugborough inscription
*Tamam Shud Case
*Unfavorable Semicircle
*Voynich manuscript
*YOGTZE case - Wikipedia page .
*Zodiac Killer
There are many websites on the subject of uncracked codes and ciphers (with a certain amount of overlap between them)- eg , and the Elonka's List page . 
See also Undeciphered writing systems
Category:Lists