The QR code has become an indispensable part of life for many in China, but have you been surrounded by hundreds of them? /CFP Photo

A tunnel made of 400 QR codes has been created at a shopping mall in Nanjing, the capital city of east China’s Jiangsu Province. /CFP Photo

The walls, the ceiling and the floor are all covered by QR codes, as part of a promotional campaign by big brands and creative games. /CFP Photo

Shoppers have been attracted by the unique, artistic design. /CFP Photo