The characteristic temples of the Classical era , such as the Parthenon in Athens , and the Temple of Zeus at Olympia , used relief sculpture for decorative friezes , and sculpture in the round to fill the triangular fields of the pediments .
The temples of the Classical era included the Parthenon in Athens , and the Temple of Zeus at Olympia . They had relief sculpture for decorative friezes , and sculpture in the round to fill the triangular fields of the pediments .