Yaxchilán is an ancient Maya city built on a steep hill surrounded by the Usumacinta River in the state of Chiapas, Mexico. Structure 21 is mostly destroyed while Structure 33 is still intact and served as the basis to the 3D reconstruction together with the detailed descriptions provided in the Corpus of Maya Hieroglyphic Inscriptions from the Peabody Museum of Archeology and Ethnology. Maudslay describes the three sculptured lintels of this building as "almost com-pletely buried" at the time of his first visit in 1882. The following year he sent his Guatemalan assistant to dig them out; they are now in the British Museum. It is not clear whether some or all of them had until then been in situ, as Maler believed. Corpus of Maya Hieroglyphic Inscriptions, Peabody Museum of Archeology and Ethnology, https://www.peabody.harvard.edu/cmhi/detail.php?num=16&site=Yaxchilan&type=Lintel Source: Objaverse 1.0 / Sketchfab