30 Unusual Archaeological Finds In The US We Still Can’t Explain

7. A REALLY OLD ANCIENT MOUND

The Poverty Point mounds in northeast Louisiana is a puzzle because it’s a giant C-shape, and it’s older than the Great Wall of China and the Colosseum in Rome. Local hunter-gatherers of the Poverty Point culture constructed the mound which implies a pre-agricultural society. A few archaeoastronomers detected solar alignments and suggested it’s the world’s most significant ancient solstice marker. Some scholars say the site had evidence of a social, political, and economic society, but no one knows for sure.