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This sculpture at CIA headquarters is unsolved after 30 years
Here’s a fun story for a saturday. Sculptor Jim Sanborn was commissioned in 1990 to create a sculpture at CIA headquarters. The sculpture, Kryptos, has 4 cryptographic challenge puzzles embedded in it. While 3 of them have been solved, the 4th has yet to be figured out. Check out more information on Elonka Dunin’s Kryptos page.
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