Road Trip

Tom Zoellner’s new book, “The National Road: Dispatches From a Changing America," offers a journey into the uneasy soul of the nation: what unites us, what divides us, and what lies in the middle between the gleaming cities of the coasts. He discussed it on "St. Louis on the Air."

From a vacuum cleaner museum to the world’s tallest mailbox, the United States is abundant with unique destinations.“These are things you’re only going to…