The platform of the second terrace measures eighty feet in front and fifty-five in depth, and is reached by another staircase forty-two feet wide, and having sixteen steps. In the centre of the steps, and against the wall of the terrace, are the remains of a pedestal six feet high, on which probably once stood an idol. On the platform, fifteen feet from the last step, stands the building. It is twenty-two feet in diameter, and has four small doorways facing the cardinal points. A great portion of the upper part and one of the sides have fallen. Above the cornice the roof sloped so as almost to form an apex. The height, including the terraces, is little short of sixty feet, and, when entire, even among the great buildings around, this structure must have presented a striking appearance. The doorways give entrance to a circular corridor five feet wide. The inner wall has also four doorways, smaller than the others, and standing at intermediate points of the compass, facing northeast, northwest, southwest, and southeast. These doors give entrance to a second circular corridor, four feet wide; and in the centre is a circular mass, apparently of solid stone, seven feet six inches in diameter; but in one place, at the height of eight feet from the ground, was a small square opening choked up with stones which I endeavoured to clear out; but the stones falling into the narrow corridor made it dangerous to continue. The roof was so tottering that I could not discover to what this opening led. It was about large enough to admit the figure of a man in a standing position, to look out from the top. The walls of both corridors were plastered and ornamented with paintings, and both were covered with the triangular arch. The plan of the building was new, but, instead of unfolding secrets, it drew closer the curtain that already shrouded, with almost impenetrable folds, these mysterious structures. At the distance of four hundred and twenty feet northwest from the Caracol stands the building represented in the following engraving. It is called by the Indians Chichanchob, meaning in Spanish, Casa Colorada, and in English, Red House. The terrace is sixty-two feet long and fifty-five wide, and is still in good preservation; the staircase is twenty feet wide, and as we approached it on our first visit, a cow was coming quietly down the steps. [Engraving 43: The Casa Colorada]