In the 3-part mini-series 'Power of Miracles: The Secrets of the Vatican', the Vatican allows a revealing look inside its still-undisclosed files: the secret archive, the Swiss Guard and other hidden treasures. Deep below the Vatican is a gigantic ancient cemetery, in which not only the bones of Peter are possibly kept, but also numerous, priceless artifacts. Historical documents of inestimable value lie in the archives and libraries. All of this is guarded by a first-class security service: the Vatican police, the Italian police and the Swiss Guard, the Pope's life guard.
—ZDF