Changdeokgung

If the palace walls of Changdeokgung could talk, visitors would probably listen in on tales of court intrigue, plotting eunuchs, and feuding royalty. Instead, through a well-informed tour guide, you will be educated on the form and function of the now-empty palace buildings scattered across acres of land in the middle of bustling Seoul.
The buildings have remained largely intact over six centuries and served as a backdrop for the last chapters of the Joseon period (1392-1910). Korea’s last emperor Sunjong passed away on these grounds in 1926, and it’s commonly known that members of royal descendants lived in Nakseonjae, a cluster of unpainted palace buildings well into the late ‘80s. The entry gate to the grounds, Donhwamun, is a two-story structure dating back to the 15th century.
http://www.cha.go.kr

National Museum of Korea

The National Museum of Korea is a short bus ride away from major Yongsan attractions. It is the head of all national museums in Korea, and the fortress of historical artifacts and artwork. The massive new structure encompasses six permanent exhibition halls, a children’s museum, three museum shops, a food court, and a theater. The museum is seated among greenery, fronted by a Gateway Pond and surrounded by Yongsan Family Park.
http://www.museum.go.kr