On the entablature is inscribed the words Aux Grandes Hommes La Patrie Reconnaissante.
The columned, round-headed windows are set in deeply between the pillars which carry the massive entablature, and this again is surmounted by a balustrade with obelisks at each angle and figures marking the line of each bay.
The frieze of the entablature contains sculptures only in the metopes of the east front and in those of the sides immediately adjoining it; the frontal metopes represent the labours of Heracles, the lateral the exploits of Theseus.
While it was probably badly wrecked by the Romans at the sack of the city, its massive columns with the entablature survived.
The fine execution is all that differentiates it from the numerous copies in various museums. The most important sculptures of the Roman period, however, are a group of colossal figures supporting an entablature, a large part of which has been recovered.
Their bases and shafts are not finished, though the capitals and rich entablature seem completely worked.
The central area, where is the basin of the font, is an octagon around which stand eight porphyry columns, with marble capitals and entablature of classical form; outside these are an ambulatory and outer walls forming a larger octagon.
Only the lower part of the cella wall was of stone, the rest being of unbaked brick; the entablature above the columns was of wood covered with terracotta.
On the entablature surmounting the Ionic columns are panels containing medallions of Scots sovereigns from James I.
In height and of the Corinthian order, and supported an entablature 7 ft.