Regio XII Piscina Publica

Regio XII took its name from the Piscina Publica, a swimming pool that disappeared during the middle imperial period.

Regio XII was named after the principal feature of this area during the reign of Augustus, the Piscina Publica, a public reservoir and swimming pool, built around the 3rd century BCE.

In extent, this region was bordered by the Vicus Piscinae Publicae to the north, the Via Ostiensis to the west, the Via Appia and the Via Latina to the east, and the Aurelian Walls to the south.

If it was still present, it was eventually destroyed to make way for the monumental Baths of Caracalla in the 3rd century CE, whose massive ruins are still visible.

[2] In addition, the region hosted the Temple of Bona Dea and contained the house of the Roman consul Lucius Fabius Cilo, which was eventually turned into the church of Santa Balbina.