Besides these, there are on this side of the camino real the remains of other buildings, but all in a ruinous condition, and there is one monument, perhaps more curious and interesting than any that has been presented. It is a lonely arch, of the same form with all the rest, having a span of fourteen feet. It stands on a ruined mound, disconnected from every other structure, in solitary grandeur. Darkness rests upon its history, but in that desolation and solitude, among the ruins around, it stood like the proud memorial of a Roman triumph. Perhaps, like the arch of Titus, which at this day spans the Sacred Way at Rome, it was erected to commemorate a victory over enemies. These were all the principal remains on this side of the camino real; they were all to which our Indian guides conducted us, and, excepting two mentioned hereafter, they were all of which, up to that time, any knowledge existed; but on the other side of the camino real, shrouded by trees, were the trembling and tottering skeletons of buildings which had once been grander than these. From the top of the great teocalis we had out first glimpses of these edifices. Following the camino real to a point about in a range with the triumphal arch, there is a narrow path which leads to two buildings enclosed by a fence for a milpa. They are small, and but little ornamented. They stand at right angles to each other, and in front of them is a patio, in which is a large broken orifice, like the mouth of a cave, with a tree growing near the edge of it. My first visit to this place was marked by a brilliant exploit on the part of my horse. On dismounting, Mr. Catherwood found shade for his horse, Doctor Cabot got his into one of the buildings, and I tied mine to this tree, giving him fifteen or twenty feet of halter as a range for pasture. Here we left them, but on our return in the evening my horse was missing, and, as we supposed, stolen; but before we reached the tree I saw the baiter still attached to it, and knew that an Indian would be much more likely to steal the halter and leave the horse than vice versa. The halter was drawn down into the mouth of the cave, and looking over the edge, I saw the horse hanging at the other end, with just rope enough, by stretching his head and neck, to keep a foothold at one side of the cave. One of his sides was scratched and grimed with dirt, and it seemed as if every bone in his body must be broken, but on getting him out we found that, except some scarifications of the skin, he was not at all hurt; in fact, he was quite the reverse, and never moved better than on our return to the village.