A special metro decorated in a "World Cup" theme, with passengers inside feeling like they are at a football field, is rolling in Nanjing, Jiangsu Province, June 30, 2018. (Photos: VCG)

A special metro decorated in a "World Cup" theme with painted green grass and football markings rolls in Nanjing, Jiangsu Province, June 30, 2018.

A special metro decorated in a "World Cup" theme rolls in Nanjing, Jiangsu Province, June 30, 2018.

A special metro decorated in a "World Cup" theme rolls in Nanjing, Jiangsu Province, June 30, 2018.