In 2013, a small county in China's mountainous west was the epicenter of an earthquake that left more than 200 people dead and destroyed the local economy. Three years later, renovation projects are healing the devastated community. Li Yang reports from Ya'an, Sichuan province.

"Saving my sister wasn't a heroic act, something to show off about. Anyone would have done it," said Zhou Zigeng, with a casual shrug that belied his bravery.

The chubby 11-year-old was recalling the morning of April 20, 2013, when he used his bare hands to dig his 2-year-old sister out of the rubble after a magnitude-7 earthquake had destroyed their home in Lushan county, Ya'an city, in the southwestern province of Sichuan.