Mysterious and Intriguing

These signs are found on streets all over the world. No one knows who puts them there, or even what exactly what they mean. The "Toynbee" in the sign is a reference to the Ray Bradbury book, The Toynbee Convector, as well as a concept from the Kubrick film, 2001: A Space Odyssey.

This sign is at the corner of W. 3rd and Prospect, *on* W. 3rd., near my husband's office building.