Suetonius in Augustus c. 28. Augustus built in Rome the temple and forum of Mars the Avenger; the temple of Jupiter Tonans in the Capitol; that of Apollo Palatine, with public libraries; the portico and basilica of Caius and Lucius, the porticos of Livia and Octavia, and the theatre of Marcellus. The example of the sovereign was imitated by his ministers and generals; and his friend Agrippa left behind him the immortal monument of the Pantheon.