Dongsanseowon is in Seonggok-dong, Andong. It was built in 1961 to honor Saam Cheon Man-ri and moved in 2002 into the Seonggok-dong Old House Museum grounds. The complex consists of the Sanguidang lecture hall, the Chungjangsa shrine, and the Dongjae Wonseonjae, Seojae Gwauijae, and Yujeongmun gate. Reaching it requires a long walk up a slope.