Carcer Tullianum

Carcer Tullianum is Rome’s oldest prison, for many centuries a maximum security penitentiary for the enemies of Rome awaiting execution.

Also known, from the Middle Ages, as the Mamertine Prison, it is the site where according to tradition the Apostles Peter and Paul lived their final days before martyrdom.

Clivo Argentario


€ 10,00


40 minutes

What’s included

  • Guaranteed access by reservation
  • Multilingual audio guide in: Italian, English, French, German, Spanish and Portuguese

To listen to the audio guide you will need to download our Vatican&Rome App from the App Store or Play Store

Service information and reception


Carcer Tullianum, Clivo Argentario


Date and time of your visit can be pre-booked. The site respects the following opening hours:

  • Monday - Sunday 9:00am - 5:00pm

Accessibility: for logistical reasons the site is not accessible to people with mobility difficulties


If you buy the admission ticket directly at the Carcer Tullianum, reductions will be applied:

  • Adult € 5.00
  • Reduced 6-17 years and students up to 25 years EU Free

For further information: tel +39 06 69896379



The value of the experience

The Carcer Tullianum is a unique place reminding us of the implacable justice of Rome against its internal and external enemies.

Those who entered this prison never survived.

External enemies like Jugurtha, king of Numidia, first an ally and then an enemy of Rome, and Vercingetorix, the king of the Gauls defeated by Julius Caesar, lived their final days here.

Many Romans lost their lives here too, such as the followers of Catiline, the man who around the 1st century BC tried to unsuccessfully subvert the Roman Republic and in particular the power of the senatorial oligarchy.

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This place is also remembered by the Christian tradition as the site where Saint Peter and Saint Paul and many other Christian martyrs,considered enemies of the Roman order because of their faith, lived their last days.

No doubt visiting the Tullianum is an experience not to be missed.


Points of interest

The Carcer Tullianum

It consists of two levels one above the other, built on the southern slopes of Capitoline Hill near Roman Forum.

The deeper level, known as Tullianum, is the oldest, dated back to the 7th century BC and was built close to the Capitoline hill.

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According to archeologist, the higher level, known as Carcer, was built a century later (6th century BC) but was restructured several times during the Republican period and the early Imperial period, when a great travertine façade was built to make the site well visible to the eyes of the city.

The prison’s position was strategic: placed at the foot of Capitoline Hill and in front of Forum, the centre of public life, it was a clear warning sign, the symbol of the implacable justice of Rome against its enemies.

Many historical figures were imprisoned here and were strangled to death or decapitated: including Jugurtha, king of Numidia in 104 BC and Vercingetorix, king of the Gauls in 46 BC.

Many historians describe the horror this place aroused and the awful suffering and humiliation inflicted on those fate brought here.


The Memory of Saint Peter and Saint Paul

The Acts of the Holy Apostles say that Peter and Paul, brought to trial before Nero, were imprisoned until the execution of their sentence.

Because of their position as undisputed charismatic figures of the Christian communities in Rome, according to tradition they were led to this same prison.

During their incarceration, the Apostles successfully converted their jailers Processus and Martinian and other inmates.

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The two Apostles miraculously made a spring of water inside the prison and baptised them.

Their walk to martyrdom began from this same place: Peter’s towards the Circus of Nero, in the area of the Vatican Hill, and Paul towards the Aquae Salviae, on the Laurentina Road.

When the prison lost its function as place of incarceration, it became a place of faith: both the levels were converted to chapels and the devotion of the Apostles began. Researchers dated the transformation of the prison into a church (with the name of St. Peter in Prison) back to the 4th century by the will of Pope Sylvester I.

From other historical documents it emerges that Pope Paul I (757-767) had a church dedicated to Saints Peter and Paul built in Via Sacra.

A fragment of a fresco depicting the hand of a blessing God next to the figure of a saint, today still visible on a wall of the Tullianum, dates back precisely to the 8th century.

The transformation into a place of worship has allowed Carcer Tullianum (like Pantheon) to remain intact over the centuries without suffering the deterioration typical of other Roman monuments.

In the 16th century a new church dedicated to St. Joseph of the Carpenters was built over the prison together with a chapel dedicated to the Holy Cross that today allows the faithful to stop in prayer.

€ 10,00

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