Wongudan Altar was built in 1897 in Korea to serve as a site for the performance of the rite of heaven. The site was also known by other names, such as Hwangudan (圜丘壇), Jecheondan (祭天壇) and Wondan (圜壇). It could be seen as the Korean equivalent of the Chinese Temple of Heaven. Wongudan was designated South Korea's Historic Site No. 157 on July 15, 1967.
