Cassius Dio, Roman Histories  66.24.2-3  (ca. A.D. 220): 2. However, a second conflagration, above ground, in the following year [A.D. 80] spread over very large sections of Rome while Titus was absent in Campania attending to the catastrophe that had befallen that region.  It consumed the temple of Serapis, the temple of Isis, the Saepta, the Temple of Neptune, the Baths of Agrippa, the Pantheon, the Diribitorium, the theater of Balbus, the stage building of Pompeius' theater, the Octavian buildings together with their books, and the temple of Jupiter Capitolinus with its surrounding temples.  3. Hence the disaster seemed to be not of human, but of divine origin; for anyone can estimate, from the list of buildings that I have given, how many others must have been destroyed.  (E. Cary, trans.)