Cheonggyecheon Stream Park with Crowd of People Relaxing on Summer Beautiful Day in Seoul City, South Korea

cheonggyecheon stream cheonggyecheon seoul south korea urbanization downtown metropolis river stream city life city urban cityscape buildings place park location architecture center public touristic skyline modern landscape cheonggye skyscraper highrise view establishing water office people crowded viewpoint day leisure crowd innovation summer travel culture tourist recreation wide space relaxation romantic attraction static