Busosanseong Fortress is the wooded hill-fortress at the heart of Baekje Buyeo. The paths climb through pavilions, shrines, and earthwork traces above the Baengma River, giving the old capital a physical shape that museum displays cannot provide on their own.
The most famous spot is Nakhwaam, the cliff tied to the story of court women leaping into the river after Baekje's fall. Treat the legend carefully, but do not skip the viewpoint: the river bend explains why this hill mattered.