See the Angels & Demons locations with a licensed guide
Small-group walking tour of the Path of Illumination, max 8 guests, with Castel Sant’Angelo and Bernini’s angels on the way.
Castel Sant’Angelo is one of the most recognisable buildings in Rome, and in Angels and Demons it is where the story reaches its climax: the “Church of Illumination”, the secret lair of the Illuminati. Here is the real history of the castle, what comes from the novel, and how to see it.
Quick answer: Castel Sant’Angelo was built as the mausoleum of Emperor Hadrian and later became a papal fortress linked to the Vatican by the Passetto di Borgo. In the novel it is the Illuminati’s “Church of Illumination”. You can see it from Ponte Sant’Angelo, lined with angels designed by Bernini.
From Hadrian’s tomb to papal fortress
The building was begun by Emperor Hadrian as a mausoleum for himself and his family, and it was completed after his death. Over the centuries the round tomb was turned into a fortress, then into a residence and refuge for the popes, and also into a prison.
Its name comes from a legend: in 590, during a plague, Pope Gregory the Great is said to have seen the Archangel Michael above the castle sheathing his sword, a sign that the plague was over. The bronze angel that stands on the top today recalls this story.
The Passetto di Borgo
A long elevated corridor, the Passetto di Borgo, links Castel Sant’Angelo to the Vatican. Popes used it as an escape route in times of danger, most famously Pope Clement VII during the Sack of Rome in 1527. In Angels and Demons this secret passage plays an important part in the final chapters.
Follow the real Illuminati path with a licensed guide
Angels & Demons small-group walking tour: 3 hours, max 8 guests, free cancellation up to 24 hours before.
Ponte Sant’Angelo and Bernini’s angels
The bridge in front of the castle is lined with ten marble angels, each holding one of the instruments of Christ’s Passion. Bernini designed them and his workshop carved them. The two angels that Bernini carved with his own hands were considered too beautiful to leave outdoors: they are today in the church of Sant’Andrea delle Fratte.
In the novel, the angels are the last signs of the Path of Illumination, pointing Langdon towards the castle.
Castel Sant’Angelo in Angels and Demons
After the four altars of science, Earth, Air, Fire and Water, the Path of Illumination ends at the “Church of Illumination”, the meeting place of the Illuminati. In the story this is Castel Sant’Angelo. As always with Dan Brown, real places are mixed with fiction: the castle, the bridge and the Passetto are real, the Illuminati lair is not. Read the full route in our guide to the real Illuminati path in Rome.
The Path of Illumination
| Place | Role in the novel |
|---|---|
| Santa Maria del Popolo | Earth: the Chigi Chapel designed by Raphael |
| St Peter’s Square | Air: the “West Ponente” relief |
| Santa Maria della Vittoria | Fire: Bernini’s Ecstasy of Saint Teresa |
| Piazza Navona | Water: the Fountain of the Four Rivers |
| Castel Sant’Angelo | The “Church of Illumination”, the Illuminati lair (this guide) |
Walk the whole story with a local guide
Our 3-hour Angels & Demons small-group tour visits the real places of the novel, and you see Castel Sant’Angelo from the outside at the end of the story. Free cancellation up to 24 hours before.
Practical tips
- See it for free: you can admire the castle and walk across Ponte Sant’Angelo at any time without a ticket.
- Visiting inside: the castle is a national museum with its own ticket; check current opening hours and prices on the official Ministry of Culture website before you go.
- Best views: the bridge and the Tiber embankments are lovely at sunset and in the evening, when the castle is lit up.
- Combine it: St Peter’s Square is a short walk away along Via della Conciliazione.
More ideas for your trip
Visiting Rome in December? Join our Christmas walking tour of Rome to see the city’s lights and decorations. Arriving by cruise ship? Book a private transfer from Civitavecchia to Rome (about 60 to 75 minutes to the city centre). And if you have an extra day, consider our Venice day trip from Rome by high-speed train. Also read our guides to St Peter’s Square and the West Ponente and the Pantheon and Raphael’s tomb.
Frequently asked questions
Is Castel Sant’Angelo in Angels and Demons?
Yes. In the novel Castel Sant’Angelo is the “Church of Illumination”, the secret lair of the Illuminati at the end of the Path of Illumination. Robert Langdon reaches it after following the clues across Rome.
What was Castel Sant’Angelo originally?
It was built as the mausoleum of Emperor Hadrian in the 2nd century AD. Over the centuries it became a fortress, a papal refuge and a prison, and today it is a national museum.
Did Bernini make the angels on Ponte Sant’Angelo?
Bernini designed the ten angels on the bridge, which were carved by his workshop. The two angels that Bernini carved himself were never placed on the bridge and are today in the church of Sant’Andrea delle Fratte.
What is the Passetto di Borgo?
It is the elevated passage that links Castel Sant’Angelo to the Vatican. Popes used it as an escape route, most famously Pope Clement VII during the Sack of Rome in 1527. It also appears in Angels and Demons.
Does the Angels and Demons tour go inside Castel Sant’Angelo?
No. On our Angels and Demons tour you see Castel Sant’Angelo from the outside while your guide explains its role in the story and in Roman history.