The thermal complex stands in Piazza Currò, south of the cathedral and partially incorporated into the Carmelite convent of Santa Maria dell'Indirizzo [Saint Mary of the Address], from which the building draws its present-day name: Terme dell'Indirizzo. 

Some ten rooms with their original cover are still visible and in particular the hydraulic system is identifiable: the furnaces for heating the rooms, the hot air channels, the downflow canals for the water. 

The centre of the complex is occupied by a octagonal hall with a domed cover and wide niches in the walls. The building's date lies somewhere between the fourth and fifth centuries AD.