It stood on a ruined mound about thirty feet high. What the shape of the mound had been it was difficult to make out, but the building was circular. The following engraving represents this edifice, with the mound on which it stands. The exterior is of plain stone, ten feet high to the top of the lower cornice, and fourteen more to that of the upper one. The door faces the west, and over it is a lintel of stone. The outer wall is five feet thick; the door opens into a circular passage three feet wide, and in the centre is a cylindrical solid mass of stone, without any doorway or opening of any kind. The whole diameter of the building is twenty-five feet, so that, deducting the double width of the wall and passage, this centre mass must be nine feet in thickness. The walls had four or five coats of stucco, and there were remains of painting, in which red, yellow, blue, and white were distinctly visible. On the southwest side of the building, and on a terrace projecting from the side of the mound, was a double row of columns eight feet apart, of which only eight remained, though probably, from the fragments around, there had been more, and, by clearing away the trees, more might have been found still standing. In our hurried visit to Uxmal, we had seen objects which we supposed might have been intended for columns, but were not sure; and though we afterward saw many, we considered these the first decided columns we had seen. They were two feet and a half in diameter, and consisted of five round stones, eight or ten inches thick, laid one upon another. They had no capitals, and what particular connexion they had with the building did not appear. So far, although the fragments of sculpture were of the same general character as at Uxmal, we had not found any edifice sufficiently entire to enable us to identify that peculiar arch which we had found in all the ruined buildings of this country; but it was not wanting. At some distance from this place, and on the other side of the hacienda, were long ranges of mounds. These had once been buildings, the tops of which had fallen, and almost buried the structures. At the end was a doorway, encumbered and half filled with rubbish, crawling through which, we stood upright in apartments exactly similar to those at Uxmal, with the arch formed of stones overlapping, and a flat stone covering the top. The apartments were ruder and narrower, but they were of precisely the same character with all the others we had seen.