"Temple B", a circular temple "(tholos)" with six columns remaining, was built by Quintus Lutatius Catulus in 101 BC in fulfillment of his vow at the Battle of Vercellae. The temple "(aedes)" was devoted to "Fortuna Huiusce Diei", "the Fortune of This Day." The colossal statue found during excavations and now kept in the Centrale Montemartini of the Capitoline Museums was the statue of the goddess herself. Only the head, the arms, and the legs were made of marble: the other parts, covered by the dress, were of other materials, probably a wooden frame. This is known as an acrolithic statue.