Before the first shot was fired in Concord, and long before the ink dried on the Declaration of Independence, there was Poverty Point. As we journey toward the USA250 anniversary, Bob and Kelli take the "USA250 Tour" to northeastern Louisiana to explore a site that challenges everything we thought we knew about early America.

Often called "North America’s First City," this UNESCO World Heritage site was a massive engineering marvel built over 3,000 years ago—centuries before the Great Pyramids of Egypt were finished.