But what brought infinite harm and damage on the said professions, even more than all the aforesaid causes, was the burning zeal of the new Christian religion, which, after a long and bloody combat, with its wealth of miracles and with the sincerity of its works, had finally cast down and swept away the old faith of the heathens, and, devoting itself most ardently with all diligence to driving out and extirpating root and branch every least occasion whence error could arise, not only defaced or threw to the ground all the marvellous statues, sculptures, pictures, mosaics, and ornaments of the false gods of the heathens, but even the memorials and the honours of numberless men of mark, to whom, for their excellent merits, the noble spirit of the ancients had set up statues and other memorials in public places. Nay more, it not only destroyed, in order to build the churches for the Christian use, the most honoured temples of the idols, but in order to ennoble and adorn S. Pietro (to say nothing of the ornaments which had been there from the beginning) it also robbed of its stone columns the Mausoleum of Hadrian, now called the Castello di S. Angelo, and many other buildings that to-day we see in ruins. And although the Christian religion did not do this by reason of hatred that it bore to the arts, but only in order to humiliate and cast down the gods of the heathens, it was none the less true that from this most ardent zeal there came so great ruin on these honoured professions that their very form was wholly lost. And as if aught were wanting to this grievous misfortune, there arose against Rome the wrath of Totila, who, besides razing her walls and destroying with fire and sword all her most wonderful and noble buildings, burnt the whole city from end to end, and, having robbed her of every living body, left her a prey to flames and fire, so that there was not found in her in eighteen successive days a single living soul; and he cast down and destroyed so completely the marvellous statues, pictures, mosaics, and works in stucco, that there was lost, I do not say only their majesty, but their very form and essence. Wherefore, it being the lower rooms chiefly of the palaces and other buildings that were wrought with stucco, with painting, and with statuary, there was buried by the ruins from above all that good work that has been discovered in our own day, and those who came after, judging the whole to be in ruins, planted vines thereon, in a manner that, since the said lower rooms remained under the ground, the moderns have called them grottoes, and "grotesque" the pictures that are therein seen at the present day.