It is plain from the history of Procopius that the statues of men and horses which he describes were upon the top of the building. For the defenders of the mausoleum against the army of Vitiges being hard pressed by the approach of the Goths under shelter of a testudo, in their despair seized these statues and hurled them upon the heads of their assailants, thus breaking down the testudines and repelling the attack. Of the exact order in which they were arranged we have no evidence. Tradition asserts that the twenty-four Corinthian columns destroyed by fire in the Basilica of St. Paul in 1823 formerly belonged to the Mausoleum of Hadrian, and that they were removed by Honorius.[105] A comparison of this tradition with a passage of Herodian, in which he says that the ashes of Septimius Severus were buried in the temple where rest the bones of the Antonini, has led to the conjecture that the columns formed the colonnade of a round temple on the top of the mausoleum in which temple Hadrian’s colossal statue stood, and that the bronze fir-cone found here, which is now in the Vatican garden, ornamented the summit. Round this temple, and upon the level top of the cylindrical tower, may have been arranged the various statues of which Procopius speaks. The colossal head of Hadrian’s statue found here is still to be seen in the Museo Pio Clementino, the bronze gilt peacocks in the Giardino della Pigna. The famous Barberini Faun, now at Munich, and the dancing Faun at Florence, were amongst the ornaments of the upper part of the tomb. Another conjecture as to the shape of the upper part of the building is that it was surmounted by a smaller cylindrical tower, with a roof in the shape of a truncated cone, upon the top of which stood the colossal statue of Hadrian. There is not sufficient evidence to give any degree of certainty to either of these conjectural restorations. The interior of the building, according to the latest discoveries, consists of a large central rectangular chamber (thirty-six by thirty feet wide and fifty-four feet high), approached by an ascending spiral corridor, leading from a lower chamber which communicated immediately with the principal entrance. The entrance was a high arch in the cylindrical tower immediately opposite the bridge; it is now walled up and the lower chamber into which it leads can only be approached from above.