What is Passetto di Borgo?

Passetto di Borgo is an 800-meter passage linking Vatican City to Castel Sant'Angelo. In 1277, Pope Nicholas III commissioned the passage as part of Rome’s medieval and Renaissance fortifications. Due to its fortified and hidden structure, it was used by popes as an escape route in times of danger. Today, the Passetto stands as a remarkable testament to the strategic foresight of the papacy and the turbulent history of medieval Rome.

How to access the passage?

Passetto di Borgo is a secret passageway connecting Castel Sant’Angelo and the Vatican castle. You can visit the corridor by buying tickets to Castel Sant’Angelo that provide exclusive access to the corridor.

The passageway has two entrances on the two ends of the attractions. To reach the corridor from Castel Sant’Angelo, you can enter through the Bastion of San Marco located in the northwest corner of the fortress. At St. Peter’s Basilica, you can access the passage’s entrance right behind the famous Bernini’s colonnade.

Step inside a space once closed to the world!

The Passetto di Borgo is no longer off-limits. Recently opened through limited experiences, this secret papal passage adds exclusivity, depth, and intrigue to your Castel Sant’Angelo visit.

Passetto di Borgo connecting to Castel Sant'Angelo in Rome, Italy, with Italian flag above.

Things to know before booking Passetto di Borgo tickets

  • Not all Castel Sant’Angelo tickets include access to the secret passage, so be sure to select a ticket that specifically grants entry to the corridor.
  • You can upgrade your experience to include an expert-led visit, offering deeper insight into the passage’s long standing history, legends, and hidden details.
  • A combo with St. Peter’s Basilica lets you explore the full arc of papal history, from the tomb of St. Peter to the frescoed papal fortress, connected by the passage in one cost-effective booking.
  • Please note that standard Passetto di Borgo tours are not wheelchair accessible.

Why visit Passetto di Borgo?

Your Passetto di Borgo ticket types explained

Ticket typeIs Passetto access included?Why go for it?Starting priceRecommended tickets

Timed Entry

✅ Yes

Self-paced & relaxed exploration

€22Entry tickets

Guided Tour

✅ Yes

Immersive, in-depth visit

€38.90Guided tour

Castel Sant’Angelo + Passetto di Borgo + St. Peter’s Basilica

✅ Yes

Top experiences in one go; cost-effective & hassle-free booking

€31Combo tour

What's to see inside?

The story behind the corridor

In response to the Saracen raid of 844, Pope Leo IV built a defensive wall around St. Peter’s Basilica, known as the Mura Leonine. The fortified area became known as Civitas Leoniana.

In 1277, Pope Nicholas III converted an 800-meter stretch of this wall into a secure, elevated passage linking the Apostolic Palace to Castel Sant’Angelo—this became the Passetto di Borgo.

In the late 15th century, Pope Alexander VI reinforced the corridor by raising the wall and adding a second rampart above it, strengthening its role as an escape route and military structure. These upgrades gave the Passetto much of its current appearance and defensive features.

Learn about Castel Sant'Angelo's history

Holy escapes: Popes who took the passage

Know before you go

Frequently asked questions about Passetto di Borgo tickets

Yes, it's highly recommended to book tickets in advance, especially for guided tours, as they are in high demand and have limited slots.

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