Located in the middle of the Guanzhong Plain, Xi'an was designated by China's central government as a national central city, an international transport hub, and an international metropolises with historical and cultural characteristics in February 2018. Remarkably, it has been named China Happiest City for six years in a row. The city hosts a large variety of events every year to promote its international status at a higher level and to strengthen the city's development potential and vitality.