Was there a massive pyramid in the U.S. that’s bigger at its base than the Great Pyramid of Giza— yet almost no one talks about it? It wasn’t built by the Egyptians. Nor any civilization you’ve heard of in school. So who really built Monks Mound?

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3. Was there a massive pyramid in the U.S. that’s bigger at its base than the Great Pyramid of Giza— yet almost no one talks about it? It wasn’t built by the Egyptians. Nor any civilization you’ve heard of in school. So who really built Monks Mound?