The Seoul City Wall or Hanyang Doseong is a defensive wall first built by the King Taejo of Joseon dynasty to defend the downtown area of Joseon's capital city Hanseongbu. It was designated as a Historic Site of South Korea in 1963, and is currently a tourist attraction around the Downtown Seoul.
Hangul: 서울 한양도성, 서울 성곽
Hanja: 서울 漢陽都城, 서울 城郭
Revised Romanization: Seoul Hanyangdoseong, Seoul seonggwak