A few rods distant, in a southwest direction from the Governor’s House, are the remains of an extensive range, or succession of ruins. They, probably, were once of no inconsiderable importance in the place. They are composed of terraces, walls, rooms and corridors, and court-yards. The principal ruin fronts the north, and, probably, was connected with the Governor’s House. A wall of two hundred feet remains standing upon a foundation of ten feet. Its width is twenty-five feet; having ranges of rooms in both sides, only parts of which remain. This wall has an acute-angled arch doorway through the centre, similar to that of the Nuns’ House, with rooms on both sides. The top of this wall has numerous square apertures through it, which give it the appearance of pigeon-holes; and its edge is formed like the gable-end of a house, uniformly notched. In front of this wall appears to have been an immense court or square, enclosed by stone walls, leading to the Nuns’ House. The interior of this square, apparently, shows the ruins of walls and rooms and walks; but nothing definite could be made out, as the ruins were almost level with the ground, and overgrown with trees and grass. At intervals, along the outer wall, in a northwest direction, the ruins of rooms were seen, evidently a regular succession of them. In the rear of the principal wall is another court or square, but much smaller than that in front, having broken corridors, and the sides running back to an artificial elevation of about fifty feet; the form of which was lost, owing to the dilapidation of the sides and angles. Ruins of rooms and corridors, both at its base and summit, were perceptible. Other squares can be defined by the broken walls contiguous to these extensive ruins; also, numerous mounds; one of which, discovered west of the Nuns’ House, is found to be an immense reservoir or cistern, having a double curb; the interior of which was beautifully finished with stucco, and in good preservation. Some of these mounds have been excavated, as I have already mentioned, and seemed to have been intended originally for sepulchres. In the centre of the avenue between the Governor’s House and the Nuns’ House, in a line with the principal doorway of the latter building, are the ruins of two walls, running parallel with each other, north and south, about twelve feet apart. The eastern and inner side shows the remains of a serpent along its façade, similar to that of the Nuns’ House—a small portion, however, only remains. It also shows rooms and ceilings quite level with the ground. The western wall is more perfect, and has a ring inserted in its façade, like those of Chi-Chen; but, instead of ornaments, presents hieroglyphics upon its sides.