← Back to Rome, Italy
🏛
Castel Sant'Angelo
Rome, Rome
The ancient fortress originally built as Emperor Hadrian's mausoleum. Connected to dark mythological forces in the Riordanverse.
landmarkReal-world locationlandmark
Visiting Tips
Castel Sant'Angelo offers rooftop views of St. Peter's Basilica. The Passetto di Borgo secret passage connects it to the Vatican.
Book Appearances
The Mark of AthenaBook 3
The fortress plays a role in the demigods' navigation of ancient Rome's mythological underside.
Key Events
- ▸Demigods encounter the fortress
Coordinates: 41.9031, 12.4663