The Tiler

Somewhere beneath the traffic of Philadelphia, embedded in asphalt, are messages that no one has ever fully explained: the Toynbee Tiles. Dr. Helena Marsh, urban folklorist and years-long investigator of the tiles, walks Sterling through the cryptic inscriptions, the reclusive suspect, and the question that still doesn't have an answer — why Jupiter? Tonight's Numbers Station Puzzler: crack the broadcast, then email your answer and the episode number (episode 55) to [email protected] for a shot at a secret line to the show. Presented by Double Secret Labs — we do science so you don't have to. Find Strangely Odd on YouTube, or wherever you get your podcasts.