After Titus becomes emperor...
Reign 23 June 79 – 13 September 81
In Cassius Dio, Epitome of Book LXVI (66), 24
However, a second conflagration, above ground, in the following year 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 theatre of Balbus, the stage building of Pompey's theatre, the Octavian buildings together with their books, and the temple of Jupiter Capitolinus with their surrounding temples. 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.
Burned by Vesuvius...
temple of Serapis
temple of Isis
temple of Neptune
Baths of Agrippa
theatre of Balbus
stage building of Pompey's theatre
the Octavian buildings together with their books
the temple of Jupiter Capitolinus with their surrounding temples