The major neighborhoods, streets, squares, and landmarks of Siracusa
Siracusa is roughly divided into two sections.
Ortigia—an island connected to the mainland by a trio of short bridges—contains the "Old City" of whitewashed alleyways and baroque buildings, the cathedral and the seaside promenades.
The "New City" sprawls over the adjacent mainland. Calling it "new city" is slightly confusing since, while much of it is, indeed, 19C and 20C construction, the "new city" also contains all of the main ancient Greek and Roman sites (plus the fab archaeological museum)—plus the train station.
The reason for this is that ancient Syracuse was much larger than medieval/baroque-era Siracusa—which had shrunk to pretty much just Ortigia—and the city didn't start re-growing back to fill its ancient footprint until the past 100 years or so.