On the terrace stood the Corinthian-order temple traditionally attributed to Jupiter Anxur (1st century BCE), about . The cella was decorated internally with engaged half-columns, and contained the pedestal for the statue of the Jupiter, who would have been venerated here as a child-god: this attribution is confirmed by the discovery of numerous leaden votive figures, like those later made for dolls' houses, in the "favissae" on the east of the temple. The interior cell measures with 6 half-columns per side. However, recently the attribution of the temple to Jupiter has been put under discussion, due to the discovery of inscriptions dedicated to Venus.