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The restoration of Teotihuacan, one of Mexico's most iconic archaeological sites, has been a century-long endeavor that began in the early 1900s. Initial efforts focused on uncovering the Pyramid of the Sun and clearing vegetation. In the 1960s, significant restoration under the direction of archaeologist Ignacio Bernal saw the Pyramid of the Moon and the Temple of Quetzalcoatl undergo extensive reconstruction. Since then, restoration has continued with a focus on preserving the site's integrity, balancing the need for tourism with conservation. Recent efforts include advanced technologies like 3D scanning and non-invasive methods to explore and preserve the site's hidden chambers and underground passages. The restoration work at Teotihuacan is ongoing, ensuring that this ancient city continues to be studied and appreciated by future generations...