The building can be visited with a guided tour on Mon - Fri: 9 a.m. - 5 p.m.
There are no tours on weekends but the Visitors Center and National Assembly's Memorial Hall can be visited between 9 a.m. - 5 p.m.
Closed on national holidays and every second and fourth Sunday of the month.
It is recommended to announce your visit in advance.
Wikipedia https://ru.wikipedia.org/wiki/Национальное_собрание_Республики_Корея
Official website http://korea.assembly.go.kr
Адрес Seoul, South Korea
Координаты 37°31'55.211" N 126°54'50.659" E