The remains of the ancient town can be visited
Basilica Ulpia

The Basilica Ulpia, named after Emperor Trajan, was a structure of ancient Rome and a central component of Trajan's Forum. It served as a civic building and shifted much of the political life from the Roman Forum to this new area.
The Basilica Ulpia, named after Marcus Ulpius Traianus, the Roman Emperor Trajan, was a structure within Trajan's Forum. It separated the temple from Trajan's Column and the main square of the forum. Unlike later Christian basilicas, it had no religious function, but served for the administration of justice, commerce, and as a meeting place for the emperor. Measuring 117 by 55 meters, it was the largest basilica in Rome and became the most important civic building of its time until the Basilica of Maxentius was constructed.
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Location: 41.8956, 12.4846