If, as you face this way, you look up to your right, you will perceive the Palatine Hill rising steeply above you, with its summit crowned by the lofty palaces and gardens constructed by the Caesars. At the side and corner which look down upon the Forum stands the part built by Caligula, the epileptic who thought himself no less than a god, and who in consequence not only turned the temple of Castor into a lower vestibule to his own house, but also built a bridge across the valley over the temple of Augustus and the Basilica of Julius to the Capitoline Hill, so that he might visit and converse with Jupiter, his only compeer. From the top of the Basilica he occasionally threw money into the Forum to be scrambled for by people who crushed each other to death in the process. It would require too much space if we climbed the sloping road which leads on to the Palatine and examined the various structures upon that hill. As we now see it in its ruins it is perhaps the most mysteriously impressive place in the world. But many alterations and enlargements of the palaces were made after the date of Nero, and we cannot now be sure of the precise aspect of the hill-top in his day. Suffice it that, overlooking the Forum, overlooking the Velabrum Valley which leads from the Forum to the Tiber, and overlooking the middle of the valley where the vast Circus or race-ground separated the imperial hill from the Aventine, there were portions of the huge imperial abodes, rising in several stories gleaming with marble, and enjoying the purest air and the widest views obtainable within the city. Nero himself, it is true, was not content with such mere human housing. After the great fire of this year 64, he proceeded to make for himself what he called "a home fit for a man," and so built--though he never finished--that famous or infamous "Golden House," which ran from the Palatine all across the upper Sacred Way and the hollow now occupied by the Colosseum far on to the opposite hills--a house of countless chambers, with three miles of colonnade, enclosed gardens large enough to be called a park, and a statue of himself 120 feet in height. The epigram went that the people of Rome must migrate, inasmuch as what had once been a city was now but a private house. This, however, had not yet occurred, and we have rather to think of palaces and gardens rich indeed, but by no means occupying the whole of the Palatine Hill alone. There were, of course, numerous buildings more or less connected with the imperial establishment, among them being quarters for the officers and soldiers of the guard. There were also a number of temples, one of which, the magnificent shrine of Apollo, the god of light and learning, stood in a court marvellously enriched with sculptured masterpieces, while connected with it were libraries filled with Greek and Latin books and adorned with the busts and medallion-portraits or statues of great authors.