
1) Outdoor sculpture in Virginia 2) Riddles 3) Stone sculpture in Virginia
Found on
https://www.crosswordclues.com/clue/kryptos

Kryptos is an encrypted sculpture by American artist Jim Sanborn located on the grounds of the Central Intelligence Agency (CIA) in Langley, Virginia. Since its dedication on November 3, 1990, there has been much speculation about the meaning of the encrypted messages it bears. Of the four messages, three have been solved, with the fourth remainin...
Found on
http://en.wikipedia.org/wiki/Kryptos
No exact match found.