Cheong Wa Dae (Korean: 청와대; Hanja: 靑瓦臺; lit. Cyan-tile Pavilion), also known as the Blue House in English, is a public park that formerly served as the presidential residence and the diplomatic reception halls of South Korea from 1948 to 2022. It is located in the Jongno district of the South Korean capital Seoul. Cheong Wa Dae is a complex of multiple buildings built largely in the traditional Korean architectural style with some modern architectural elements and facilities.
https://en.wikipedia.org/wiki/Blue_House