Among the magnificent buildings erected by Hadrian mention may be made of the following: In the capital, the temple of Venus and Roma; his splendid mausoleum, which formed the groundwork of the castle of St Angelo; the pantheon of Agrippa; the Basilica Neptuni; at Tibur the great villa 8 m.
The so-called exedra of Herodes Atticus (which answers in all respects to a nymphaeum in the Roman style), the nymphaeum in the palace of Domitian and those in the villa of Hadrian at Tibur (five in number) may be specially mentioned.
So great was Rome's sense of kinship to the Latins that in two cases Latin cults were introduced inside the pomoerium: the worship of Hercules, which came from Tibur in connexion with commerce, was established at the ara maxima in the forum boarium, and the Tusculan cult of Castor as the patron of cavalry found a home close to the forum Romanum: it is a strange irony that both these deities should in reality have been in their origin Greek.
Cynthia (Hostia) was a native of Tibur (iv.
Syphax, king of Numidia, died in the territory of Tibur as a captive in 201 B.C.; and in A.D.
It allied itself with the Gauls in 361 B.C., and in the war which followed the towns of Empulum and Saxula were destroyed (their sites are unknown) and triumphs over Tibur were celebrated in 360 and 354 B.C., and again in 338, when its forces were defeated, with those of Praeneste.
He usually spent the winter at his seaside villa on the Latian coast near Laurentum, and the summer at one of his country houses, either among the Tuscan hills, near Tifernum, or on the lake of Como, or at Tusculum, Tibur or Praeneste.
Horace ranked it with Tibur and Baiae, though as a fact it never became so fashionable a residence as Tibur or the Alban Hills.