This architectural group is part of the so-called Great Acropolis and is located at the southeast end of the monumental core of the city, at a height of 90 m above the level of the Great Plaza. Associated with these three buildings several stelae, altars and steps with hieroglyphic inscriptions were located, among which Stela 10 and Altar 4 stand out, which by dates are associated with the beginning of the period of Pájaro Jaguar IV.

Building 40: All the monuments of Building 40 are linked to Pájaro Jaguar IV, among them Stela 11 stands out. In the interior of this building there are remains of mural painting and some figures modeled in stucco, which have been identified with the “Bolom Ticú” or “Nine Lords of the Night”. Building 41 has three steps with inscriptions and five stelae, mainly associated with Escudo Jaguar, 681 to 742. The best preserved, 18, is now in the National Museum of Anthropology.

Stela 11: Buildings 39 and 41 belong approximately to the years 650 to 700, along with others of the same style, such as 25, 26 and 30. Temple 40 is from the period when Pájaro Jaguar IV ruled. While buildings 39 and 40 have been maintained in an excellent state of preservation, building 41 presents stability problems since ancient times, which could be one of the reasons why there are numerous modifications in its structure, as well as an important deterioration in its central elements.

Buildings 39 and 41: Buildings 39 and 41 belong approximately to the years 650 to 700, along with others of the same style, such as 25, 26 and 30. Temple 40 is from the period when Pájaro Jaguar IV ruled. While buildings 39 and 40 have been maintained in an excellent state of preservation, building 41 presents stability problems since ancient times, which could be one of the reasons why there are numerous modifications in its structure, as well as an important deterioration in its central elements.