(ALL THAT'S INTERESTING) – In a courtyard outside of the entrance to the Central Intelligence Agency’s New Headquarters Building, there is a mysterious sculpture dubbed “Kryptos.” Installed in 1990 by artist Jim Sanborn, Kryptos is a large, wave-shaped copper sculpture containing 1,800 characters that at first glance seem to be random, jumbled combinations.
Random, however, these letters are not. Kryptos actually contains four distinct encrypted messages, three of which have been cracked over the course of the three decades since Kryptos was installed. The fourth has yet to be solved.
Advertisement - story continues below
But even the sections of Kryptos’ message that have been cracked leave many wondering what the purpose of the sculpture is. In recent years, Sanborn has provided several clues as to what Kryptos’ fourth passage could mean, yet no one has been able to successfully solve this tantalizing puzzle.