People ride the Guangzhou Metro subway system in Guangzhou, China.People ride the Guangzhou Metro subway system in Guangzhou, China.People ride the Guangzhou Metro subway system in Guangzhou, China.People ride the Guangzhou Metro subway system in Guangzhou, China.People ride the Guangzhou Metro subway system in Guangzhou, China.People ride the Guangzhou Metro subway system in Guangzhou, China.People ride the Guangzhou Metro subway system in Guangzhou, China.People ride the Guangzhou Metro subway system in Guangzhou, China.People ride the Guangzhou Metro subway system in Guangzhou, China.People ride the Guangzhou Metro subway system in Guangzhou, China.People ride the Guangzhou Metro subway system in Guangzhou, China.People ride the Guangzhou Metro subway system in Guangzhou, China.People ride the Guangzhou Metro subway system in Guangzhou, China.People ride the Guangzhou Metro subway system in Guangzhou, China.People ride the Guangzhou Metro subway system in Guangzhou, China.