Antiquae urbis Romae cum regionibus simulachrum

A schematic map depicts Roma Quadrata. The city walls are shown in a diamond shape with hills (Palatine, Aventine, Capitoline, Exquiline) and structures labeled. Cardinal directions are marked at the corners.

Labels for city gates: First Gate, Fourth Region Aventine Gate, Second Gate, Third Region Exquiline Gate.

Labels for hills and structures: Palatine Region, Temple of Mars, House of the Priest, Palace of Romulus, Palatine Hill, Septim of Hercules, Temple of Rhea, School of Cassius, House of Remus and Faustulus, Aventine Hill, House of Saturn, Temple of Jupiter Stator, Citadel, Asylum, Capitoline Hill, Senate House, Temple of Juno, Old Exquiline Hill, Public Meeting Place, General Meeting Place, Capitoline Region.

Romulus left Rome having three gates
or, if we believe the most numerous accounts,
four
says Pliny