““In a crypt beneath the ground-floor level of the church are the tombs of Saints James and Philip, two of the apostles going back to the life of Jesus. Deeper still, if we were allowed to dig beneath the crypt, we would soon come upon remains of ancient Imperial Rome, beneath that, Republican Rome, and finally, perhaps some of Bronze Age Rome. This makes the church a metaphor for the entire Eternal City: a place of layer upon layer of history, of accumulations of countless cultures, of confrontations between the sacred and the profane, the holy and the pagan—and of multiple hidden secrets. To understand Rome is to recognize that it is a city swarming with secrets—more than three millennia of mysteries. And nowhere in Rome are there more secrets than in the Vatican.””