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Cueva de la Menga
Chambered Tomb
A study reveals the advanced mathematical, astronomical and geological knowledge that was used to build one of humanity’s first stone buildings, located in southern Spain

The Prehistory Guys have done two recent podcasts about this tomb on their patreon and maybe they will get released on their youtube later, not sure. Anyway it’s very interesting stuff – this is the free to read academic paper the Guys and El Pais are discussing -science.org/doi/pdf/10.1126/sciadv.adp1295