S1, E3: Earthquake lights. Hallucinogenic gases. Magnetic fields. New scientific research has revealed that these and other tectonic phenomena happened at virtually every site in ancient Greece where oracles delivered their prophecies to pilgrims and nobles. Could it be that the landscape itself contributed to making these places sacred? Join us as we travel the Mediterranean to visit locations where oracle predictions determined the fate of nations and examine the connection between mankind and what may be the most Sacred Site of all: Earth itself.