The Mound Builders - Best of Coast to Coast AM - 5/30/19

George Noory and filmmaker L.A. Marzulli explore his research into large earth mounds found at Native American sites around North America, who may have built them, and whether they are burial mounds for an ancient race of giant humanoids that used to roam the planet. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.