Sculptures
The ancient sources state the temple had ivory doors and held numerous works of sculpture. The pediment included two bas-reliefs of hunting the Galatians, from Delphi, and 6th century BC Chian art, with sculptures of the Niobids by Bupalus and Athenis. The cult group in the cella included a statue of Apollo Citharoedus, possibly by Scopas and perhaps from the sanctuary of Apollo at Rhamnus in Attica; a sculpture of Diana, by Timotheos; and one of Latona, sculpted by Cephisodotus. Into shelves at the basis of the statue of Apollo were placed the Sibylline Books, transferred here from the temple of Jupiter on the Capitol (cf. Suetonius, Div. Aug. 31.3).
The temple was surrounded by a portico (the portico of the Danaids) with columns in yellow 'giallo antico' marble, and with black marble statues of the fifty Danaids in between the column-shafts, a sculpture of Danaos with his sword unsheathed, and equestrian statues of the sons of Egypt.
Read more about this topic: Temple Of Apollo Palatinus