placenta chamber and stele of king seongjong in changgyeonggung palace, seoul, south korea

placenta chamber stele king seongjong changgyeonggung palace seoul stone structure historic heritage korean royal monument cultural landmark architecture ancient preservation history southkorea sightseeing tourism forest greenery traditional fenced environment serene nature legacy historiclandmark outdoor artifact historicstructure royalheritage heritagearchitecture travel conservation monumentdesign korea tranquil sculpture memorial legacysite urbanescape