Hwando (Chinese: 丸都; pinyin: Wandu) is a mountain fortress of the ancient Korean kingdom of Goguryeo, built to protect Goguryeo's second capital, Gungnae. It is located in present-day Ji'an city of the province of Jilin, China. The fortress is located 2.5 km west of Ji'an, Jilin province in Northeast China, near the North Korean border. It is part of the UNESCO World Heritage Site Capital Cities and Tombs of the Ancient Koguryo Kingdom, together with nearby Gungnae City and the Ohnyeosan City, because of its historical importance and exceptional architecture.