Editor's note: This report focuses on Chongqing as part of our special series, "Rising Star Cities," about Chinese cities whose annual GDP exceeds 1 trillion yuan ($155.4 billion). At the end of 2020, there were 23 such cities. Click here for more stories on Chongqing. You can also explore our earlier coverage of Ningbo and Changsha. 

"Bangbang," porters carrying heavy objects up and down the hills, were once the symbol of Chongqing. With the rapid development of Chongqing's economy, the number of bangbang has sharply decreased.

However, the bangbang spirit of bearing hardship and responsibilities still persists there.

Take a closer look at the bangbang!