Gongsanseong Fortress
Gongsanseong is a mountain fortress in Gongju that protected the capital of the Baekje kingdom in the 5th and 6th centuries. Its walls follow the ridges above the Geumgang River, with gates and pavilions along the way. It is part of the Baekje Historic Areas UNESCO site. A walk along the walls takes about an hour and offers good views of the river and town.
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