Is there evidence of relatively advanced civilizations existing in ancient North America?
Answer Most Americans have no idea that ancient cities with advanced architectures once dotted the ancient North American landscape. It is estimated that there once existed over 200,000 cities, structures and mounds across the continent. Monk’s Mound in the ancient site of Cahokia, across from St. Louis, has a footprint bigger than the Great Pyramid of Giza in Egypt, and Cahokia’s population was estimated to be greater than that of London or Rome. Some sites still existing, like the Newark Earthworks in Ohio, reveal a culture that was very sophisticated in its knowledge of mathematics and astronomy.