In the period of Domitian (81-96 AD) a brick temple was erected in the centre of the Piazzale delle Corporazioni, facing the theatre. Various deities have been related to the temple by the archaeologists: Annona, Ceres, Serapis, Vulcanus.

The vestibule was reached along a staircase with perhaps eleven marble steps. In front of the vestibule were two marble columns. The walls of the cella have disappeared almost entirely. The pavement was made of marble slabs. Inside a fragment of a marble cornice was found.

On either side of the temple are foundations of a later date. It is not known to what kind of structures they belonged.