Gyeongbokgung palace("Palace Greatly Blessed by Heaven.") is the largest palace of Chosun dynasty(1395-1905). This palace is destroyed during the Japaneses Hideyoshi invasions of 1592, and reconstructed in 1867. However Gyeongbokgung Palace was largely torn down during the Japanese occupation in early 20C, and then the restoration has been ongoing since 1990.
For more information, refer to http://www.royalpalace.go.kr/html/eng/data/data_01.jsp?dep1=2
Geunjeongjeon is the Throne Hall, where the king granted audiences to his officials, presided over large official functions and met foreign envoys. Geunjeongjeon is the largest and most formal hall in Gyeongbokgung. The two-tier edifice stands on a high platform reached by stone steps. There is a spacious courtyard in front, where important events were held and corridors enclose it.
or more information, visit http://www.royalpalace.go.kr/html/eng/data/data_03_03.jsp?dep1=2&dep2=2