Jongchinbu Gyeonggeundang and Okcheopdang are royal office buildings from the Joseon dynasty located behind the National Museum of Modern Art, Seoul. Gyeonggeundang is the main hall and Okcheopdang is the side hall; both traditional hanok structures have been restored to their original form and designated as treasures. Admission is free, but viewing is limited to the exteriors of Gyeonggeundang and Okcheopdang. The interiors of the buildings cannot be viewed.