Terme Achilliane

Is it worth the trip?

If you are on the cathedral square anyway, yes. It costs €5, the way in is beside the cathedral’s façade, and you stand inside a Roman room with its original vaults still over your head.

Know what you are getting. This is one hall and a corridor, probably only one of the cold rooms of a complex that once covered a large part of the city centre (it.wikipedia), not a bath building you can walk round. For that, the Terme dell’Indirizzo, about 200 m away, stand above ground to their domed hot room. The hours are short as well: the baths close at 15.00 on most days and open on Sundays only for booked groups of 20 or more, so plan a weekday or Saturday.

Getting there

The entrance is on Piazza del Duomo, down a ramp to the right of the cathedral’s façade (it.wikipedia). Tickets are sold at the Museo Diocesano, Via Etnea 8, on the same square, which runs the baths; the baths’ own sign gives the museum for bookings and tickets (the operator). The Dusmet-Duomo bus stop is about 50 m away and Parcheggio Borsellino, a paid car park, about 130 m (OpenStreetMap). The Catane – Catania page links the city’s other Roman sites, all within walking distance.

The museum’s published hours are Monday to Saturday 10.00–15.00, with Tuesday and Thursday afternoons 15.00–20.00 as well, and Sundays and public holidays only by booking for groups of at least 20; last entry is half an hour before closing. The baths alone cost €5, reduced €3 (university students, over-65s, 10- to 18-year-olds and teachers, among others), and children under 10 go free. A combined ticket with the Museo Diocesano is €10, reduced €6, and one that also covers the Benedictine monastery is €15 (museodiocesanocatania.com, read 21 October 2026). The same site also prints a timetable for summer 2025 in which Tuesday and Thursday open only in the afternoon, so check before planning a morning on either day.

History

When the baths were built is still debated. A group of capitals of Constantine’s time reused in the cathedral may come from them, which would place them in the 4th century; Roger Wilson’s studies would allow the 3rd (it.wikipedia). Pleiades dates them to the 4th and 5th centuries.

The name comes from a Greek inscription on a marble slab from Luni, broken into fragments that together run to almost 4.3 m and are now laid out in the civic museum of the Castello Ursino (it.wikipedia). Its readings differ: Francesco Ferrara read the name as Achillianai, Holm and Kaibel as Achellianai. On Giacomo Manganaro’s reading, the inscription dates to about 434 and records a remodelling, perhaps a reduction in size, meant to save firewood for the hypocausts, begun by the governor Flavio Liberalio and finished by his successor Flavio Felice Eumazio under the emperor Theodosius II (it.wikipedia).

In 1088 Bishop Ansgerio chose the area of the baths for his cathedral, completed in 1094, and its monastery; the earthquakes of 1169 and 1693 buried the remains (it.wikipedia). In the 18th century the Prince of Biscari cleared the hall of the debris of 1693 and traced the complex under the cathedral, the seminary that now houses the Museo Diocesano and the town hall. Jean Houel, who took the hall for a colossal temple of Bacchus, painted its stuccoes in gouaches now in the Hermitage in St Petersburg (the operator). Remains attributed to the baths, with traces of a heated floor, were found under the seminary in 1856 (it.wikipedia).

The baths were closed as unsafe from 1974 to 1994, reopened after the city restored them in 1997 and closed again by flooding. The repaving of Piazza del Duomo in 2004–2006 covered them with a heavy steel slab to carry the square, and they then reopened to visitors and for events (it.wikipedia).