In 1978, during work for the installation of electrical cables in the historic center of Mexico City, workers uncovered a stone disk with a diameter of about 3.25 meters. It was the sculpted face of Coyolxauhqui, the goddess of the moon dismembered by her brother Huitzilopochtli according to Aztec mythology. That chance discovery forever changed the understanding of Tenochtitlán, the Mexica imperial capital buried beneath the foundations of the Spanish colonial city, and initiated the systematic excavations that would bring to light the Templo Mayor.
The great temple was located at the ceremonial center of Tenochtitlán, the city founded according to tradition in 1325 on the island of a now-drained lake. The complex that visitors can see today is the result of decades of excavations directed by the archaeologist Eduardo Matos Moctezuma, who coordinated the research starting in 1978 and transformed an urban construction site into one of the most significant archaeological sites on the American continent.
The stone of Coyolxauhqui and its ritual significance
The disk of Coyolxauhqui is undoubtedly the most powerful piece of the entire complex. Currently displayed in the museum adjacent to the site, it shows the goddess with a fragmented body, the broken limbs arranged in a circular composition with extraordinary sculptural precision. The details are impressive up close: the decorative skulls, the feathers, the snakes intertwining around the limbs. According to archaeologists' interpretation, the disk was placed at the base of the temple staircase dedicated to Huitzilopochtli, so that the ritual sacrifices would symbolically roll towards it.
The original placement of the disk tells something essential about the architecture of the Templo Mayor: the temple was divided into two halves, one dedicated to Huitzilopochtli, god of the sun and war, and one to Tláloc, god of rain and fertility. This duality is reflected in the double staircase and the two sanctuaries that crowned the structure, and it remains visible in the ruins even today.
The eagle warriors and the buried offerings
Among the most evocative sculptures of the site are the statues of the eagle warriors, life-sized terracotta figures that flanked the entrance of a ceremonial building adjacent to the main temple. The eagle warriors were part of the Mexica military elite, and their depictions show a helmet shaped like an eagle's head with the warrior's face emerging from the open beak. The effect is both solemn and unsettling, and the original statues are preserved in the site's museum.
The excavations also yielded hundreds of ritual offerings deposited in the foundations of the temple during subsequent construction phases. The Templo Mayor was expanded at least seven times over the decades, with each new ruler building a larger structure around the previous one. The offerings contained items from all over the Aztec empire: jade masks, skeletons of marine animals, green stone figurines, obsidian objects. Many of these artifacts are displayed in the Museum of the Templo Mayor, which occupies a modern building specially constructed next to the ruins.
The attached museum: where stone tells the story
The Templo Mayor Museum is an integral part of the visit and should not be skipped for any reason. Spread over several floors, the museum houses thousands of artifacts recovered during the excavations, organized by themes and construction phases. In addition to the Coyolxauhqui disk, which occupies a dedicated room, the museum preserves the stone of Tízoc, a cylindrical monolith engraved with scenes of military conquest, and numerous funerary urns, ritual vases, and objects made of gold and semi-precious stones.
The quality of the exhibition is high, with explanatory panels in Spanish and English that contextualize each artifact. Dedicating at least two hours to the entire complex — ruins plus museum — is the minimum necessary to avoid feeling overwhelmed by the amount of information and objects.
Practical tips for the visit
The Templo Mayor is located in the historic center of Mexico City, just a few steps from the Plaza de la Constitución (the Zócalo) and the Metropolitan Cathedral. The nearest metro station is Zócalo, on line 2. The site is open from Tuesday to Sunday; the entrance ticket includes both the ruins and the museum and is generally around 90 Mexican pesos, although prices may vary.
The best time to visit is early in the morning, right when it opens, when the light is favorable for photographs and the tourist crowd is still manageable. The Mexican sun can be intense, especially in the outdoor ruins: bringing water and sunscreen is essential. Avoid weekends if possible, when the historic center is particularly crowded. Those who want to delve deeper into the historical context can purchase the official museum guide directly at the ticket office.
