The brilliant Brian Unger ("How the States Got Their Shapes" & "Always Sunny in Philadelphia") takes us home to Louisville, Kentucky. The largest city in the Bluegrass State is know for it's love affair with bourbon, over 100 years of the Kentucky Derby, and a vital piece of the Civil War. We break all of that down, and Brian tells about his first hand experience with an F4 tornado, shares some history of the state, and admits that Louisville is one of his favorite cities in the US.