Aerial photo taken on April 17, 2018 shows the Zhangjiashan Park served as an emergency shelter for residents in Ya'an City, southwest China's Sichuan Province. On April 20, 2013, a 7.0-magnitude earthquake hit Ya'an, causing different degrees of damages to buildings, road traffic and other infrastructures in this area. After five years of active reconstruction, a new Ya'an rises from the earthquake ruins and now takes on a new look. [Photo/Xinhua]