Just a few miles north of South Korea's capital city of Seoul, Bukhansan National Park is a retreat for city dwellers and international visitors. Forests and ancient temples sit side-by-side in the park, beneath the three granite peaks of Bukhan Mountain, or Bukhansan. Among the park's ridges and valleys, water deer, wild boar, chipmunks, and squirrels roam freely. A careful ear might pick out the rat-a-tat of woodpeckers or the chirpy melody of songbirds perched in the trees. The park also boasts Bukhansanseong Fortress, whose current structure was completed in 1711.