Introduction to Zhongshan Gate: In early 1927, Zhongshan Gate was opened at the initiative of General Feng Yuxiang and was named in memory of the national revolutionary leader Dr. Sun Yat-sen. On May 1, 1927, General Feng Yuxiang led his army on the Eastern Expedition and left the city through Zhongshan Gate. Zhongshan Gate has two door openings in parallel, and Feng named them "Dongzheng Gate" and "Triumph Arch" respectively.