天坛
It is important to note that Yuanshi Tianzun is never represented with either images or idols. Instead, in the center building of the Temple of Heaven, in a structure called the "Imperial Vault of Heaven", a "spirit tablet" (神位, or shénwèi) inscribed with the name of Yuanshi Tianzun is stored on the throne, "Huangtian Shangdi" (皇天上帝). During an annual sacrifice, the emperor would carry these tablets to the north part of the Temple of Heaven, a place called the "Prayer Hall For Good Harvests", and place them on that throne.