Founded during the second Samnite war by Fabius Maximus (Livy, x.
29)--326-304 B.C.--overlooking the Circus Maximus. The remains consist
of tufa substructions, steps leading up to the temple, and some
peperino fragments.
The circular altar on the steps, found close by, bears an inscription
to Calvinus, consul B.C. 53-40.