 | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (September 2012) |
| Castel Sant'Elmo | |
|---|---|
| Naples, Italy | |
 The main entrance to Castel Sant'Elmo seen from northeast | |
| Coordinates | 40°50′38″N 14°14′20″E / 40.843815°N 14.239005°E |
| Site information | |
| Owner | Comune di Napoli City of Naples |
| Controlled by | Napoli Beniculturali Naples Ministry of Culture |
| Open to the public | Yes |
| Condition | Good |
| Site history | |
| Built | 1200s (first building) 1537 (today's building) |
| Built by | ? (1200s building) Don Pedro de Toledo (1537 fortress) |
| In use | Still in use today |
| Materials | Tuff |
Castel Sant'Elmo is a medieval fortress located on Vomero Hill adjacent to the Certosa di San Martino, overlooking Naples, Italy. The name "Sant'Elmo" derives from a former 10th-century church dedicated to Sant'Erasmo, shortened to "Ermo" and, finally altered to "Elmo". Located near the upper terminus of the Petraio, one of the city's earliest pedestrian connections between upper and lower Naples, the fortress now serves as a museum, exhibition hall, and offices.