Cheonggyecheon Stream build in Yeongjo period. This place are older than 600 years old. In the past this canal is a sewage and than has been created expressway lap canal. Later, In 2003 the government renovated by break the motorway and spend money $900 million for development the dirty water to clean but when people know they are disagree but when renovated finish this place are popular for Korea people and tourists. This canal length around 5.84 kilometers. This place has courtyard for activity, around canal has a fountain, fountain for water barrier and has many the bridge and in each bridge are difference.