Excavation of the temple complex is currently being undertaken in the center of modern Mexico City.  Using information gathered through these excavations and from drawings that survive in Early Colonial Codices, it is possible to partially reconstruct what the temple and some of the surounding structures may have originally looked like.  The structure itself was a twin pyramid dedicated to the patron god of the Mexica, Huitzilopochtli and the rain god Tlaloc.  Twin staircases were located at the front of the structure with large areas left open at the front, possibly for dances and processions.  The pyramid was constructed of finely cut stone that was imported into the city from the surrounding area.  Two temples, one to Huitzilopochtli and another to Tlaloc, were constructed at the top of the pyramid.  These temples do not survive but the evidence that has been gathered to date, suggests that the temples were originally plastered and painted with colorful murals.  The pyramid was likely also plastered on the exterior.  Carved stone also decorated the pyramid and temple structures.  Many of these decorative architectural sculptures have been unearthed through ongoing excavations at the site.    

 Plan of temple of Huitzilopochtli or Templo Mayor at Tenochtitlan.