The façade of the Mamertine Prison, or Carcer Tullianum
The Mamertine Prison, known in Roman times as the Carcer Tullianum, represents one of the oldest and most significant examples of early public architecture preserved in the heart of the Roman Forum. It was the symbolic prison for distinguished prisoners of ancient Rome and is located adjacent to the Via Sacra within the Forum. For nearly a thousand years, it held in chains the enemies of the Roman people and state, the defeated and the traitors of Rome: from Pontius, king of the Samnites, to Vercingetorix, king of the Gauls, from the Apostle Peter to the conspirators of Catiline.