In recent years, Kuwait has invested significantly in its economic relations with China. China has been Kuwait's largest trade partner since 2016. Under the Belt and Road Initiative, Kuwait and China have various cooperation projects including South al-Mutlaa which is currently under construction in northern Kuwait. The Sheikh Jaber Al-Ahmad Al-Sabah Causeway is part of the first phase of the Silk City project. The causeway was inaugurated in May 2019 as part of Kuwait Vision 2035, it connects Kuwait City to northern Kuwait. The Kuwait National Cultural District comprises the Sheikh Abdullah Al-Salem Cultural Centre, Sheikh Jaber Al-Ahmad Cultural Centre, Al Shaheed Park, and Al Salam Palace. In 2020, Kuwait's domestic travel and tourism spending was $6.1 billion.