In the mean time Mr. Catherwood, still an invalid, and deprived of sleep the night before, had his hammock slung in an apartment at the top of the building. By afternoon the clearing was finished, and he made his drawing, which appears in the engraving opposite. [Engraving 27: A grand Structure] The lowest range or story is one hundred and forty-five feet in length. The roof and a portion of the facade have fallen, and almost buried the centre doorways. The apartments containing the staircases are indicated in a plan hereinafter presented. Each staircase consists of two flights, with a platform at the head of the first, which forms the foot of the second, and they lead out upon the roof, under the projection which stands like a watch-tower in the wall of the second range, and from this range two interior staircases lead out in the same way to the platform of the third. The reader will observe that in the second and third ranges there are no openings of any kind except those at the head of the staircases, but simply a plain, solid wall. At first sight of this wall we thought we had really at last found a casa cerrada, and almost wished for the cura with his bombas. The major domo, looking up at it, called it so; but it seemed strange that such a character had ever been ascribed to it; for, barely working our way round the platform of the terrace, we found ranges of doorways opening into apartments, and that this was merely what we had often seen before, a back wall without doors or windows. And we made another much more interesting and important discovery. The elevation which we came upon first, facing the west, and shown in the engraving, noble and majestic as it was, was actually the rear of the building, and the front, facing the east, presented the tottering remains of the grandest structure that now rears its ruined head in the forests of Yucatan. In front was a grand courtyard, with ranges of ruined buildings, forming a hollow square, and in the centre a gigantic staircase rose from the courtyard to the platform of the third story. On the platform of the second terrace, at each end, stood a high square building like a tower, with the remains of rich ornaments in stucco; and on the platform of the third, at the head of the grand staircase, one on each side of it, stood two oblong buildings, their facades adorned with colossal figures and ornaments in stucco, seemingly intended as a portal to the structure on the top. In ascending the grand staircase, cacique, priest, or stranger had before him this gorgeously ornamented portal, and passed through it to enter the centre apartment of the upper story.