For hundreds of years, Americans have speculated about the origins of ancient burial mounds scattered across North America. Rob is joined by Miranda Yancey of the Illinois State Museum to consider who created these mounds. Speculations have run wild and come to include a lost tribe of Israel, Vikings, Freemasons, and a mythic race of giants. How did European Americans use these false legends to justify the colonization of the Americas, and what is the truth behind America’s ancient burial mounds?