Peabody Award winner Linda Moulton Howe and other experts explore the enigma of the colossal stone pyramids encircling our planet, both their purposes and the incomprehensible technology behind their creation.
Cybela Clare
Herself - The host
Linda Moulton Howe
Herself
David Childress
Himself
Richard C. Hoagland
Semir Osmanagić
Alfred Lambremont Webbre