This northern courtyard has several overlapping floors, made to counteract the sinking of the land and the constant flooding that Tenochtitlan suffered. The three small buildings that can be seen in front, aligned with the wall of the platform of the Templo Mayor, have been designated with the letters A, B and C. They were built around 1500 (Stage VI). From this point, Building A is the closest. It has two staircases that lead to its upper part, it only conserves a stucco covering.

Red Temple: This small building is inspired in the Teotihuacan constructions. It is similar to the one located in the North Patio. It presents the same architectural characteristics, as well as mural painting on stucco, with similar designs and colors.

Tzompantli Altar, Templo Mayor Museum: Building B or Tzompantli Altar is decorated with rows of human skulls carved in stone.