Of the numerous archaeological sites found in the area east of the city, in addition to the complex stratigraphy below the Cathedral, are imposing structures of a Roman building, located in vico I Carminiello at Mannes, east of Via Duomo and within the block bounded on the North by way courts and to the south by Via San Biagio dei Booksellers. The archaeological highlighted by the 1943 bombings, which destroyed the Church of Santa Maria del Carmine at Mannes and the adjacent buildings, documents part of an insula (isolated) of the ancient city occupied by even a small spa building. It is a multi-layered construction, quite articulate, dating in its main structures at the end of the first century AD, but it has elements attributable to different phases., The oldest of which belong to the Republican age. Among these, of particular interest is an apsidal rectangular, with black and white tiles on the floor, belonging to the lower level, perhaps forming part of a house. Incorporated in the imperial age, the foundations of a large building with vaulted rooms, the property is developed on at least two levels: the lower one, lit by skylights, was occupied by service rooms; that host top spa complex, which is part of the hydraulic lines are identified and a series of rooms with marble baths placed in the south wing of the building. Among the subsequent changes must be reported to the late imperial age, the probable construction of a porch along the western facade and adaptation to mithraeum of two of the rooms on the lower floor, where the intended use is evidenced by the presence a stucco relief depicting the god Mithras in the act of sacrificing a bull. These transformations, the deepest since the fifth century AD, culminating in the Middle Ages with the incorporation of Roman structures within the religious building was later destroyed.