Zhonghua Gate (Gate of China) and Nanjing City Skyline, Nanjing, Jiangsu Province, China.
It is the southern gate of Nanjing city. It is a the city gate with the most complex structure in the world.
Nanjing City Wall was built between 1360 and 1386 AD when Nanjing City was the capital of China in Ming Dynasty, and the enclosed area was the largest of any walled city in China. By Wangkun Jia.