Migrant workers queue to have their motorcycles filled up for free at a gas station in Shunde, south China's Guangdong Province, Jan. 18, 2017. The Spring Festival, or Chinese Lunar New Year holiday, which falls on Jan. 28 this year, is known as the world's biggest migration, with millions of migrant workers travelling vast distances for family reunions. Some of them do it by motorcycle, often riding for days. (Xinhua/Liu Dawei)
