of the ends of the cornice. Unfortunately, rings, markers and sculptures are more portable and more prone to removal or destruction than the permanent ballcourt infrastructure, and at some ballcourts these features have been lost forever. Maya stairs Many – or even most – Maya depictions of ballgame play are shown against a backdrop of stairs. Conversely, Maya staircases will occasionally feature reliefs of ballgame scenes or ballgame-related glyphs on their risers. The most famous of these are the Hieroglyphic Stairs at Structure 33 in Yaxchilan, where 11 of the 13 risers feature ballgame-related scenes. In these scenes, it appears as if the players were actually playing the ball against the stairs in what would seem to be a Maya version of stoop ball. The association of stairs and the ballgame is not well understood. Linda Schele and Mary Miller propose that the depictions record historic events and in particular record a "form of play ... distinct from the game conducted on the courts", one that "probably followed immediately after[ward] on steps adjacent to the ballcourts". Other researchers are skeptical. Marvin Cohodas, for example, proposes that the "stairs" are instead stepped platforms associated with human sacrifice, while Carolyn Tate views the Yaxchilan stair scenes as "the Underworld segment of a cosmogram". Image gallery Notes References Balcourt Ball games Ancient sports Indigenous sports and games of the Americas Sports venues by type