Building from the end of the Middle Classic period (around the year 750), whose architectural typology and alignment with the four cardinal points suggest an astronomical and calendrical function. The quadrilateral plant of the building is practically aligned with the cardinal points, only has a deviation of 4º east of north, making that the thresholds of the west and east facades, as well as those of the central room, have an alignment that allows to glimpse the dawn during the days near the equinox from the main sacbé and certain structures in the northeast corner of the Central Plaza. These conditions have made the Temple of the Seven Dolls a unique building in the Maya Area.