Seoullo 7017 is actually a pedestrian walkway created along with an old highway overpass. It provides beautiful views of the city skyline and is a popular spot for going for walks and sightseeing. During the night time, the walkway is lit up with colourful lights, rendering it a good spot https://top100bookmark.com/story20154313/little-known-facts-about-myeongji-area-nightlife