The remains of the ancient town can be visited
Pyramid of Cestius

The Cestius Pyramid in Rome is a unique ancient tomb, distinguished by its unusual shape. As the last surviving pyramid of its kind in the city, it is now a striking landmark on the Via Ostiensis.
History+
The pyramid was built between 18 and 12 BC as the burial site for Gaius Cestius Epulo, a Roman praetor and tribune of the plebs. Since burials within the city limits were forbidden, a prominent location was chosen on the Via Ostiensis, which led to the port of Ostia. After Emperor Augustus conquered Egypt, Egyptian culture flourished in Rome, which was also reflected in the construction of pyramids as tombs.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://en.wikipedia.org/wiki/File:Pyramid_of_cestius.jpg
This description draws on the facts documented in the linked Wikipedia article; Wikipedia content is licensed under CC BY-SA 4.0. Wording and editing: Mobile History.
Location: 41.8764, 12.4809