Qianmen () is the colloquial name for Zhengyangmen (; Manchu:; Möllendorff:tob šun-i duka, literally meaning "Gate of the Zenith Sun"), a gate in Beijing's historic city wall. The gate is situated to the south of Tiananmen Square and once guarded the southern entry into the Inner City. Although much of Beijing's city walls were demolished, Zhengyangmen remains an important geographical marker of the city. The city's central north–south axis passes through Zhengyangmen's main gate. It was formerly named Lizhengmen (), meaning "beautiful portal". History Zhengyangmen was first built in 1419 during the Ming dynasty and once consisted of the gatehouse proper and an archery tower, which were connected by side walls and together with side gates, formed a large barbican. The gate guarded the direct entry into the imperial city. The city's first railway station, known as the Qianmen Station, was built just outside the gate. During the Boxer Rebellion of 1900 in the late Qing dynasty, the gate sustained considerable damage when the Eight-Nation Alliance invaded the city. The Hui and Dongxiang Muslim Kansu Braves under Ma Fulu engaged in fierce fighting during the Battle of Beijing at Zhengyangmen against the Eight-Nation Alliance. Ma Fulu and 100 of his fellow Hui and Dongxiang soldiers from his home village died in that battle. Ma Fulu's cousins, Ma Fugui (馬福貴) and Ma Fuquan (馬福全), and his nephews, Ma Yaotu (馬耀圖) and Ma Zhaotu (馬兆圖), were killed in action during the battle. The Qing Empire later violated the Boxer Protocol by having a tower constructed at the gate. The gate complex was extensively reconstructed in 1914. The barbican side gates were torn down in 1915. After the Communist victory in the Chinese Civil War in 1949, the Zhengyangmen gatehouse was occupied by the Beijing garrison of the People's Liberation Army. The military vacated the gatehouse in 1980, which has now become a tourist attraction. At 42 metres high, the Zhengyangmen gatehouse was, and remains, the tallest of all gates in Beijing's city wall. Zhengyangmen gatehouse survived the demolition of city walls in the late 1960s during the construction of the Beijing Subway, while other gates such as Deshengmen in the north and Dongbianmen in the southeast only have their archery towers standing. Xibianmen retains only part of its barbican while Yongdingmen's gatehouse was rebuilt in 2007. Today, Qianmen Avenue (Dajie) cuts between the Zhengyangmen gatehouse and the archery tower to the south.