A cracker

Anyone who has walked past Anton Parsons’s sculpture Invisible city in Wellington must have wondered what the message in Braille says. Parsons apparently remains mum on its meaning, so it will remain a mystery until someone cracks the code.

And so we segue to CIA Headquarters at Langley.

There the sculpture Kryptos (named after the Greek word for 'hidden') by James Sanborn has been puzzling code crackers ever since it was installed in 1988. The code is in three sections. Two have been decoded by ace CIA operatives (the second only with the aid of a lot of computer grunt) but the third section is still holding out. A sample of the decoded text reads, "Between subtle shading and the absence of light lies the nuance of iqlusion." The misspelling is all part of the fun. Wired has the full story.
Image: James Sanborn's Kryptos