63 Building and Yeouido Business District Skyscraper Silhouetted During Colorful Sunset with Orange Gradient Sky

seoul city dramatic sky sunset yeongdeungpogu yeouido train cross han river scenic picturesque sky skyline romantic riverbank waterfront hangang park railway bridge bridge passenger train subway green reflections water move travel touristic tourism architecture iconic famous place destination public transportation cityscape south korea skyscraper 63 square building office tower golden orange pink evening