The Baths of Diocletian, part of the National Roman Museum, are on Viale Enrico de Nicola beside Rome’s Termini station. The scale of the ancient complex is a draw in itself, with surviving bath structures now set alongside museum galleries, sculpture and archaeological finds. Look for mosaics, pottery, statues and gravestones, then take time in the cloisters and gardens. The museum is one of four National Roman Museum sites, each in a different setting and with its own collection.
A vast Roman bath complex
The Baths of Diocletian were built between 298 and 306 AD. Emperor Maximian commissioned the complex in honour of his co-emperor Diocletian. At its height, it could accommodate up to 3,000 people, making it larger than the Baths of Caracalla. Public baths were part of daily Roman life, used for bathing and socialising.
The surviving structures give a sense of the complex’s scale, though the original baths covered a far larger area than the museum site visitors see today. The remains are spread across the area, and parts of the ancient complex were later incorporated into other buildings.
From baths to museum and cloisters
Some of the thermal-bath spaces were adapted for later uses. In the 16th century, a church and monastery complex was built within part of the site. The museum visit takes you through these different settings, from archaeological remains to cloisters and outdoor gardens.
The displays include marble and bronze sculpture, mosaics, pottery, art and gravestones. Exhibitions also cover ancient Roman cults, while family tombs can be seen in the large water storerooms. The surviving architecture and museum collections together trace several layers of the site’s history.
One of four National Roman Museum sites
The Baths of Diocletian are one branch of the National Roman Museum, whose four locations are spread across Rome. The other sites are Palazzo Altemps, Palazzo Massimo and Crypta Balbi. Each has its own collection and setting, so the combined ticket can be used to plan visits to more than one branch.
The museum route is clear, with labels in Italian and English. QR codes provide web-based information about the exhibits. The site is close to Termini station, making it straightforward to reach by train or from the surrounding area.
Preguntas frecuentes
Where are the Baths of Diocletian?
They are at Viale Enrico de Nicola, 78, beside Termini station in Rome.
What can you see at the Baths of Diocletian?
The site includes remains of the ancient baths, museum collections of sculpture, mosaics, pottery and gravestones, as well as cloisters and gardens.
How long should you allow for a visit?
Plan for about 2 to 3 hours to explore the large site and its collections.
Are the Baths of Diocletian part of the National Roman Museum?
Yes. They are one of its four locations, alongside Palazzo Altemps, Palazzo Massimo and Crypta Balbi.

