The Aztec Ruins National Monument preserves ancestral Pueblo structures in north-western New Mexico, United States.
The buildings date back to the 11th to 13th centuries, and the misnomer attributing them to the Aztec civilization can be traced back to early American settlers in the mid-19th century. The actual construction was by the ancestral Puebloans, the Anasazi.
Aztec Ruins was added to the UNESCO list of World Heritage Sites, as part of the Chaco Culture National Historical Park, on December 8, 1987.
Pueblo people describe this site as part of their migration journey. Today you can follow their ancient passageways to a distant time. Explore a 900-year old Ancestral Pueblo Great House of over 400 masonry rooms. Look up and see original timbers holding up the roof. Search for the fingerprints of ancient workers in the mortar. Listen for an echo of ritual drums in the reconstructed Great Kiva.