99% Invisible

Icons and symbols and signage are all around us, and nowhere more so than on the open road. So for this episode of Ubiquitous Icons: hop in the car with Roman and Kurt for a crash course in roadside signage. We'll learn about the history of the stop sign, the iconic rural mailbox, and the signs that tell you what you'll find at highway exits. This is Highways 101.

Highways 101

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