Namhansanseong Fortress | Gwangju
Located on Namhansan Mountain, the Namhansanseong Fortress was originally built during the Goguryeo period about 2,000 years ago and after many renovations, it became a designated UNESCO World Heritage site in 2014. There are five courses to walk along the fortress with varying levels of difficulty. The fortress is great for all seasons and you can enjoy the different colours of the mountain at different times of the year.