Dongmyo Shrine is a shrine where ancestral sacrifices to the Chinese military commander Guan Yu were performed. It is also known as Seoul Donggwanwangmyo, which means Gwanwangmyo in the east of Seoul.
Guksadang Shrine, on Mt. Inwangsan, is one of the most important and almost mythical Shamanic shrines in Korea that at a time was used for exorcisms. Shamanism is a religion with beliefs in unseen worlds of gods, demons, and spirits. Shamans believe in 12 deities which are the spirit of the mountain, the spirit of the dragon king, the spirit of three monks, and spirit of seven stars.
Hwangudan Altar (Wongudan Altar)
Wongudan Altar is where the emperor would perform sacrifices to heaven. The altar was built in 1897 and since then has been known as Hwangudan and Wondan. The complex was built during the reign of Emperor Gojong and was designed by Sim Uiseok, at the time, one of the best royal architects.
Jeoldusan Martyrs' Shrine
Jeoldusan Martyrs' Shrine is a Catholic shrine on the Han River dedicated to those who gave up their lives during the Byeongin persecutions of 1866. In late 1866, nine French missionaries were martyred. This caused two attempted invasions into Korea by a French fleet. After the attempted invasions, the Joseon government punished, targeted, and brutally murdered many French and native Korean Roman Catholics. The place became known as "beheading mountain."
Jongmyo Shrine is the supreme shrine of the state. Royal ancestors tablets are enshrined here and memorial services are performed for kings and queens of the Joseon Dynasty. Construction on the Confucian style shrine was completed in 1395 by the orders of King Taejo.
Seoul Munmyo is a shrine dedicated to Confucius, his disciples, and other great scholars. In the past, it has also gone by the name Munseonwangmyo. During the Joseon Dynasty, the buildings were used as an educational institution.