Coordinates: 41° 45′ 22″ N, 12° 17′ 29″ E
As main port of the antic Rome, Ostia was a busy trading centre over 6 centuries until the 5th century.
The main street, the Decumanus Maximus, passes by:
- The Capitol (the largest temple).
- The Theatre.
- The Thermopolium (a bar with marble counters and paintings).
- The Casa di Diana (a block of flats with shops).