Feathered Serpent
An interesting feature of the Feathered Serpent Pyramid is that there are examples of a shift in power or ideology in Teotihuacán and for the Pyramid itself. The construction of the Adosada platform came much later than the Feathered Serpent Pyramid. The Adosada platform is built directly in front of the pyramid and blocks its front view. Thus, it is thought that the political leaders lost favor or that the ideology of the Feathered Serpent Pyramid lost virtue, and so was covered up by the Adosada.