The next great edifice which added to the architectural wonders of the city, was the temple built by Vespasian after the destruction of Jerusalem, which he called the Temple of Peace. It was adorned with the richest sculptures and paintings of Greece, taken from Nero's palace, which Vespasian demolished as a monument of insane extravagance. In this temple were deposited also the Jewish spoils, except the laws and veil of the temple.

[Sidenote: Falvian Amphitheatre.]

[Sidenote: The Colosseum.]

But the great work of this emperor, and the greatest architectural wonder of the world, was the amphitheatre, which he built on the ground covered by Nero's lake, in the middle of the city, between the Velia and the Esquiline. For magnitude it can only be compared with the pyramids of Egypt, and its remains are the most striking monument we have of the material greatness of the Romans. Though not the first of the amphitheatres which were erected, its enormous size rendered the erection of subsequent ones unnecessary. It was here that emperors, senators, generals, knights, and people, met together to witness the most exciting and sanguinary amusements ever seen in the world. It was built in the middle of the city, with a perfect recklessness of expense, and could accommodate eighty-seven thousand spectators, round an arena large enough for the combats of several hundred animals at a time. It was a building of an elliptical form, founded on eighty arches, and rising to the height of one hundred and forty feet, with four successive orders of architecture, six hundred and twenty feet by five hundred and thirteen, inclosing six acres. It was built of travertine, faced with marble, and decorated with statues. The eighty arches of the lower story formed entrances for the spectators. The seats were of marble covered with cushions. The spectators were protected from the sun and rain by ample canopies, while the air was refreshed by scented fountains. The nets designed as a protection from the wild beasts were made of golden wire. The porticoes were gilded; the circle which divided the several ranks of spectators was studded with a precious mosaic of beautiful stones. The arena was strewed with the finest sand, and assumed, at different times, the most different forms. Subterranean pipes conveyed water into the arena. The furniture of the amphitheatre consisted of gold, silver, and amber. The passages of ingress and egress were so numerous that the spectators could go in and out without confusion. Only a third part of this wonderful structure remains, and whole palaces have been built of its spoils. [Footnote: Dyer, Hist. of the City of Rome, p. 245. Gibbon, chap. 12. Montaigne, Essays, in. 6. Lipsius, de Amphitheatro.]

[Sidenote: Rebuilding of the Capitol.]

[Sidenote: Arch of Titus.]

Another great fire which took place A.D. 80,—the same in which Titus dedicated the Colosseum,—and which raged three days and nights, destroyed the region of the Circus Flaminius, including some of the finest temples of the city, and especially on the Capitoline, and created the necessity for new improvements. These were made by Domitian, who rebuilt the Capitol itself with greater splendor on its old site, and erected several new edifices. Martial speaks with peculiar admiration of the Temple of the Gens Flavia. [Footnote: Martial, L., ix. Ep. 4, 35. ] He also erected that beautiful arch to his brother Titus which still remains one of the finest monuments of the imperial city. The Odeum, a roofed theatre, was erected by him, capable of holding twelve thousand people. He also made many additions to his palace on the Palatine—so lofty, that Martial, his flatterer, described it as towering above the clouds, and Statius compared the ceiling to the cope of heaven.

[Sidenote: Forum Trajanum.]

[Sidenote: Basilica Ulpia.]

No great improvements were made in the city until Trajan commenced his beneficent and splendid reign. His greatest work was the Forum which bears his name, to which allusion has been made, eleven hundred feet long, in the centre of which was that beautiful pillar, one hundred and twenty-eight feet high, which is still standing. The Forum, the Basilica Ulpia, and the temple dedicated by Hadrian to Trajan, were all parts of this magnificent structure, one of the most imposing ever built, filled with colossal statues and surrounded with colonnades.