Aerial photo taken on Feb 6, 2018 shows the Zhonghua Gate in Nanjing, capital city of East China's Jiangsu province. Couplets with each approximately 15 meters high and 2 meters wide are hung on the 12 ancient city gates in Nanjing to welcome the coming Spring Festival which falls on Feb 16. Hanging couplets on the door is a traditional way for Chinese to celebrate the Lunar New Year. [Photo/Xinhua]