Brian Unger hits the road to uncover the history hidden in the lines and contours that make up the U.S. map through man-on-the-street quizzes and head-to-head competitions.
How has water has literally shaped the states? There's surprising history hidden in the squiggly blue lines on the map.
The history of transportation is hidden in the lines of the map. From canals to trains and cars, how did getting around help draw the American map?
How have massive geological events helped create the American map? Long before the Founding Fathers drew the map, Mother Nature shaped some states herself.
How did the most rebellious states take shape? And how did they earn their outsized features and outspoken reputations?
There are secrets hiding in our map, from the "blank spots" like Area 51 to the county in Georgia that was left off its state's quarter.
If you thought our borders were set in stone, you're wrong. Who stole a corner of Washington, D.C.? Is Ohio actually a state? Why isn't St. Louis our nation's capital?
Did money make our map? Through boom and through bust, the sweet smell of profit has drawn and redrawn our states.
Cultures compete against each other all over the map. In extreme cases, they can divide states in two. Will rivalries within our states break them into pieces?