I have read several articles about this. Are you saying it was built by Africans or Phoenicians?
No, not at all. It is American.
It is to me truly amazing. My cousin in the valley of the Clinch River in East Tennessee has a stone celt found by his great uncle. It bears remarkable resemblance to those in the Cahokia museum discovered at two “factories” . There is evidence of trade for the mica mined in Western North Carolina. Trade was conducted over large distances.
Mean while simultaneously, similar large populations of what we know as Anasazi were active in the San Juan Basin/Colorado plateau.