Simon Sebag Montefiore looks at how every event in ancient Rome revolved around religion. From the foundation myth through to the deification of emperors, nothing could happen without calling upon the pantheon of Roman gods. Simon investigates how the Romans worshipped and sacrificed to the gods. He discovers that sacredness defined what was Roman and it was the responsibility of every Roman to play their part in the cult. Even the ancient Roman sewer was holy ground!