There is a well called "Eojeong," situated in the middle of the path from Jongmyo Jeongyo to Oedaemun Gate, holds historical significance. It is said that Joseon's kings used to drink from this well during their visits to Jongmyo. Gyeongseong Baekgyeong documented in the 1930s that Eojeong never dried out during droughts, maintaining a constant water level. It was noted that the water was ice-cold in summer and steaming hot in winter, and renowned for its great taste. This historical importance is reflected in the naming of the neighborhood around Jongmyo as Hunjeong-dong.

However, during the Japanese colonial era, a concrete pipe was placed inside the well due to nearby construction activities. After Liberation, significant changes occurred for Eojeong. As the subway and underground parking lot beneath Jongmyo Shrine were constructed, the well's water completely dried up. Consequently, the well no longer retains any water today.

Presently, only remnants of Eojeong can be found, marked by a lid shaped like that covers the well. Adjacent to Eojeong, a stone in the shape of a turtle remains, believed to be the stylobate of a headstone that identified Eojeong.