On this special feature episode, President Bill Clinton interviews 99% Invisible host and creator Roman Mars.

Roman Mars has spent his career chronicling these bits of human ingenuity that we so often take for granted—things like the utility codes, the curb cuts, the traffic signals, and much more. As host of the 99% Invisible and, with Kurt Kohlstedt, co-author of the book The 99% Invisible City: A Field Guide to the Hidden World of Everyday Design, his work challenges all of us to look up and around, and to think about the how and the why of design around the world in a different way.

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