Probably the original inhabitants built a continuous structure close to the edge of the platform, leaving the interior for an open court. Subsequently, as population increased, rather than resort to the labor necessary to raise a new pyramidal structure, they erected other buildings on this court. From the plan, as given by Mr. Stephens, there seems to have been no less than five such put up, besides the tower. Thus covering the platform with a somewhat confused mass of buildings, and, instead of the large open court, there were left only three narrow courts, and one somewhat larger—seventy by eighty feet.12 The building erected near the edge of the platform, inclosing the court, was some two hundred and twenty-eight feet on its east and west sides, by one hundred and eighty feet on its north and south sides, and about thirty feet high.

Our general view, taken from Mr. Stephens’s works, represents the ruined eastern front of this building, surmounting the pyramid. Trees are seen growing all over the ruins. The outer wall is pierced by numerous doorways which, being somewhat wider than the space that separates them, gives to the whole the appearance of a portico with wide piers: no remains of the doors themselves have been discovered. Drilled holes in the projecting cornice, immediately above the doorway, gave Mr. Stephens the impression that an immense cotton curtain, perhaps painted in a style corresponding with the ornaments, had been extended the whole front, which was raised or lowered, according to the weather. The lintels of the doors were of wood. They had long since vanished, and the stones over the doorway fallen down. Of the piers separating the doorways, only fifteen were found standing, but the crumbling remains of the others were readily traced on the ruins.

Each of the standing piers, and presumably all the others, was ornamented with a bas-relief in stucco. This cut gives us a good example of this style of ornamentation. We notice portions of a richly ornamented border. This stucco work consists of human figures in various attitudes, having a variety of dress, ornaments, and insignia. The stucco is said to be nearly as hard as the stone itself. Traces of paint, with which the figures were once ornamented, were still to be seen. The conjectures in regard to these figures, have been innumerable. Vividly painted, and placed in a conspicuous place on the wall, we may be very sure they were full of significance to the builders. Three hieroglyphics are placed over the head of each group, but so far, they are as little understood as the figures themselves. We can imagine the effect, when the building was still perfect and entire, and all the piers were thus ornamented.

Passing to the top of the pyramid, we find the construction of the building whose outer wall we have been describing, to be substantially as follows: Three parallel walls, from two to three feet in thickness, composed of hewn stones, were erected about nine feet apart. At the height of ten feet, the walls commenced approaching each other; not, however, in an arch, for this was unknown, but in a triangular manner, the stones in each course projecting a little farther out. This cut represents a cross-section of the buildings, and shows also the slight cornice. All inequalities in the surface, as here represented, were then filled with cement, thus furnishing a smooth surface, which was then painted. The two outer walls were plentifully supplied with doorways; the central wall had but few. We are only given the description of one, which may not apply to all. This one, opposite the entrance on the east side, has a trefoil-shaped arch over the door, thus giving it this shape. Besides the few doorways, the central wall had numerous depressions, or niches, some of which served for ventilation, others for the support of beams, and perhaps others as receptacles for torches or idols. This principle of construction is substantially the same for all the buildings in the interior of the court, and indeed for all the buildings at Palenque.