After the pagan fighters left their stronghold, a crowd of Christian Alexandrians and soldiers swarmed the hill. One of them took an axe and with all his strength struck the jaw of the monumental statue of Serapis…The crowd then hacked the rest of the statue into pieces and dragged the fragments off to each of the city’s regions to be burned.
…The destruction of the Serapeum [A.D. 392] was a momentous event, second perhaps only to the Gothic sack of Rome in 410 for the amount of attention it received from contemporary sources.
That is from the new and excellent book The Final Pagan Generation, by Edward J. Watts. Watts tries to reconstruct the worldviews and impressions of the pagans who witnessed the onset of Roman state-sanctioned Christianity; an underlying theme of the work is how weak a sense we have of what is truly significant in our time, or not. I often find Roman histories to be difficult to parse, but this one is a model of lucidity.