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Portus
Italia · Roman province·Italy·Founded 42 CE by Claudius
Rome's imperial harbor. Trajan's inner hexagonal basin was finished just before our snapshot — you can still see its outline today.
An uninhabited archaeological site near Rome's Fiumicino airport; the hexagonal basin of Trajan's ancient harbor still survives amid the modern town.
Open Portus on the interactive map →Roman Maps shows the empire frozen at 11 August 117 CE, the day Trajan died — its moment of greatest territorial extent. Explore the full map →