While the Greeks were building temples in the old world, incredible monuments of earth were being constructed across eastern North America. Thousands of mounds and mile upon mile of earthen embankments are part of the rich Legacy of the Mound Builders. This is the story of a lost civilization born in the heartland of America; of advanced peoples with an elaborate trade network which extended over half the continent . . . and this was 2,000 years ago! Some scholars now believe the overall work of the mound builders exceeds that of the pyramids and the ancient works of Egypt. But just who were these people? Discover some of the surprising answers in Legacy of the Mound Builders.