Dongdaemun History & Culture Park Seoul Hanyangdoseong is a remaining section of the Seoul City Wall next to Dongdaemun Design Plaza. The wall here was restored on the site of the former Dongdaemun Stadium grounds. Namsan and Bukhansan Insubong are visible from this spot, and photos can be taken there. The contrast between the modern Dongdaemun Design Plaza and the wall stands out.