The most celebrated example of such ornamentation was the box of Kypselos, in the opisthodomos of the temple of Hera at Olympia.
Demosthenes (xxiv, 136) speaks of a fire in the opisthodomos.
The temple was decastyle, dipteral, with pronaos and vestibule, but no opisthodomos.
But, if the western room of the Periclean temple was the opisthodomos, where was the proper?
There was in large temples a porch of approach, the pronaos, and another behind, the opisthodomos.
It is natural to regard this (with Lolling) as Page 11 the opisthodomos where the treasure was kept.
The pronaos and opisthodomos were each bounded by two Doric columns between antae, surmounted by metopes.