Very different from the tomb of Dante, and different in the associations it awakes, is the Rotunda or Mausoleum of Theodoric the Goth, outside the Porta Serrata, whose daughter, Amalasuntha, as it is supposed, about the year 530, erected this imposing structure as a certain place "to keep his memory whole and mummy hid" for ever. But the Goth had not lain in it long before Arianism went out of fashion quite, and the zealous Roman Catholics despoiled his costly sleeping-place, and scattered his ashes abroad. I do not know that any dead person has lived in it since. The tomb is still a very solid affair,--a rotunda built of solid blocks of limestone, and resting on a ten-sided base, each side having a recess surmounted by an arch. The upper story is also decagonal, and is reached by a flight of modern stone steps. The roof is composed of a single block of Istrian limestone, scooped out like a shallow bowl inside; and, being the biggest roof-stone I ever saw, I will give you the dimensions. It is thirty-six feet in diameter, hollowed out to the depth of ten feet, four feet thick at the center, and two feet nine inches at the edges, and is estimated to weigh two hundred tons. Amalasuntha must have had help in getting it up there. The lower story is partly under water. The green grass of the inclosure in which it stands is damp enough for frogs. An old woman opened the iron gate to let us in. Whether she was any relation of the ancient proprietor, I did not inquire; but she had so much trouble in, turning the key in the rusty lock, and letting us in, that I presume we were the only visitors she has had for some centuries. Old women abound in Ravenna; at least, she was not young who showed us the mausoleum of Galla Placidia. Placidia was also prudent and foreseeing, and built this once magnificent sepulcher for her own occupation. It is in the form of a Latin cross, forty-six feet in length by about forty in width. The floor is paved with rich marbles; the cupola is covered with mosaics of the time of the empress; and in the arch over the door is a fine representation of the Good Shepherd. Behind the altar is the massive sarcophagus of marble (its cover of silver plates was long ago torn off) in which are literally the ashes of the empress. She was immured in it as a mummy, in a sitting position, clothed in imperial robes; and there the ghastly corpse sat in a cypress-wood chair, to be looked at by anybody who chose to peep through the aperture, for more than eleven hundred years, till one day, in 1577, some children introduced a lighted candle, perhaps out of compassion for her who sat so long in darkness, when her clothes caught fire, and she was burned up,--a warning to all children not to play with a dead and dry empress. In this resting-place are also the tombs of Honorius II., her brother, of Constantius III., her second husband, and of Honoria, her daughter.