Aerial view of Hohhot in China's Inner Mongolia (4)

Photo taken on Aug. 1, 2017 shows the construction site of subway line No. 1 in Hohhot, capital of north China's Inner Mongolia Autonomous Region. This group of photos taken by drones shows landmarks of the city, reflecting the development of the city in recent years. This year marks the 70th anniversary of the founding of the Inner Mongolia Autonomous Region. In local language, Hohhot means the "Blue City". It is the political, economic and cultural center of the region. (Xinhua/Lian Zhen)