The ancient citadel was the Capitoline Hill on which in early times had been erected the temple already mentioned to the three divinities of Male and Female Power and of Wisdom--Jupiter, Juno, and Minerva. It corresponded to the Acropolis of Athens and her Parthenon. But whereas the Parthenon was the nucleus of the Hellenic ideal, as embodied in architectural glory--the embodiment of an ideal, detached and lifted up above the common life--the formal grandeur of Rome descended from the Capitoline Hill and occupied the low ground that separated it from the Palatine, so that it might identify itself with the practical, everyday ideals of the city. And, first, for the purely practical. The southern side of the Forum was in early times bordered with the tabernæ or wooden booths of the butchers and other produce merchants, while on the north were the shops of the gold-and silversmiths, and money changers. The Forum, in fact, was the central market of Rome and came to be its financial centre, and, as a necessary result, the centre also of legal and judicial procedure. In later times, as the volume and intricacies of business increased, the tabernæ were replaced by basilicas, which included halls of justice and of exchange for merchants. Meanwhile, let us try to picture the Forum as the embodiment of Roman ideals. It was bounded on both sides by the Via Sacra, or Sacred Way; the two forks uniting near the foot of the Palatine Hill, around which the Sacred Way continued to its junction with the Appian Way. Its stones were sacred because they had been trod by the countless hosts of Rome’s victorious armies, returning in triumphal procession to pay their homage to the deities of Male and Female Power and of Wisdom upon the Capitol. As the soldiers swept out of the Appian Way, they would skirt the spot, where in later times arose the Colosseum, and the roadway was spanned by the Arch of Constantine, and a little farther on by the Arch of Titus. From this the road advanced in an easterly direction and then turned north. Then from earliest times two objects would greet the victors’ eyes. Upon the right stood the arch of two-headed Janus, god of gates and doors. It was all but a certainty that its two doors would be standing open; for, although this army was returning victorious, there were others almost continuously engaged on the frontiers of the empire. So the soldiers, glutted with fighting and hungry for the sight of their loved ones, would turn more eagerly to the left, where rose the circular temple of Vesta, guardian of the home and hearth. It was the symbol of the ideal of sane and simple home life, on which the greatness of Rome was founded, and as the Vestal Virgins thronged the steps of their convent or atrium, hard by the temple, the eagles would be lowered and every bronzed warrior would salute the maiden priestesses, who, in their absence, had kept perpetually alive the sacred fire.