The Hypogeum kids — Malta's lost school class. tried to nail down where this even came from

Ħal Saflieni Hypogeum in Paola, Malta. Underground temple/necropolis carved out of solid rock, 6000 years old, three levels going down. The acoustics in the 'Oracle Room' are insane — a man's voice resonates through the whole structure, you feel it in your chest, women's voices don't carry the same.……