This space in the Temple Mayor Museum welcomes visitors with one of the most important pieces in the museum's collection: the Tlaltecuhtli monolith, "The Lord or Lady of the Earth." It is a piece carved from andesite lamprobolite, an extrusive volcanic rock with pink and violet tones. As it represents the female version of this deity, it stands out with its natural childbirth position.

Additionally, there is the skull nail wall, a remarkable museographic presentation that evokes the Tzompantli, which was originally made with human skulls.