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 on canal. Later, In 2003 the government renovated by smash the motorway and has budget around $900 million 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.