Malta’s Hypogeum, Altering Minds with Sound?

Malta’s 6,000-Year-Old Hypogeum – Built to Alter Minds with Sound? Incredible subterranean resonant chambers, hewn out of solid rock. http://milbert.com/articles#hypogeum   The Ħal Saflieni Hypogeum in Malta, a UNESCO World Heritage Site, is an underground prehistoric burial site that dates back to approximately 3600-2500 BCE. It is renowned not only for its archaeological significance but … Read more