It is a secondary plaza, connected to the Great Leveling by means of a sacbé to the south side of El Castillo. The plaza is conformed by a pyramidal base similar to El Castillo, a circular platform, a Platform of Venus and to the east it is communicated with the Cenote Xtoloc by means of another sacbé. This one has the same plan as the Great Leveling but with a different orientation.

Platform of Venus: Very similar to the one found in the Plaza de El Castillo. It has reliefs that show representations of a man-bird-serpent, Quetzalcóatl-Kukulcán like morning star, and in the corners, tied of years next to the symbol of the planet Venus. In the upper panels Venus is seen among the undulations of cloud serpents.

The Ossuary: The Ossuary has four staircases with alfardas, formed by intertwined serpents that finish in the superior part, in a space that was occupied by a temple decorated with representations of men-bird-serpent. It is composed by seven staggered bodies of inclined faces; in three of the bodies of the superior part there are boards with representations of God K, associated with cacao seeds, jewels and fruits. Two columns in the form of feathered serpents indicate the access to the temple, in whose interior there is a pilaster with the representation of a captive individual. The date, 998 A.D., is associated with this character.

Platform of the Tombs: It is a building that perhaps functioned as an ossuary. During its exploration several secondary burials were located. Its most notable feature are the columns that supported a roof of perishable material.