In the middle of CIA headquarters, there sits a sculpture that contains a secret code that has stumped top cryptologists for decades.
원문출처 : https://www.cnn.com/2020/07/25/us/kryptos-secret-message-code-trnd/index.html
원문출처 : https://www.cnn.com/2020/07/25/us/kryptos-secret-message-code-trnd/index.html