How many meters above sea level is Chang 'an Street in Beijing?

Chang 'an Street in Beijing is located in the center of Beijing, connecting Dongcheng District and Xicheng District, with a total length of about 38 kilometers. According to the field investigation and information disclosure, the data in Beijing Geography show that the lowest point of Chang 'an Street is located in Xidan subway station, with an altitude of about 3 1 m. The highest point is located at Muxidi overpass, which is close to 50 meters above sea level; Most other areas are between 35 and 45 meters above sea level.

On Chang 'an Avenue, famous buildings include Tiananmen Square, the Great Hall of the People, the National Museum and the National Library of China. The height of these buildings from the ground is also uneven. Generally speaking, the elevation of Chang 'an Avenue is relatively high, especially in the Xicheng area, so it is necessary to keep warm and cold, especially in winter or extreme weather.