Cheong Wa Dae (Korean: 청와대; Hanja: 靑瓦臺; lit. 'Cyan-tile Pavilion'), also known as the Blue House in English, is the executive office of the president of South Korea. Located in Seoul's Jongno District, directly behind Gyeongbokgung Palace, it served as the center of presidential administration and state receptions from 1948 until 2022. Under the presidency of Yoon Suk Yeol, it was opened to the public as a museum and urban park. Cheong Wa Dae is expected to become the presidential residence again after the presidential office is moved.
https://en.wikipedia.org/wiki/Blue_House