Archaeologists have discovered that many ancient sites were built with an acoustic purpose, and often resonate at a frequency that has a profound effect on the human brain. Could ancient people have been aware of a harmonic code? One that put them in... (more) contact with alien beings?

Amir Hussain, Andrew Collins, Ariel Bar Tzadok, David Childress, Deepak Shimkhada, Erich von Däniken, Felicia Beardsley, Giorgio A. Tsoukalos, Hugh Newman, Jeffrey Thompson, John Vivanco, Jonathan Young, Layne Little, Michael Dennin, Michio Kaku, Mitch Horowitz, Praveen Mohan, Travis Taylor, William Henry