Qianmen Street, a famous commercial street in Beijing. Axis is located in Beijing, North Moon Bay from the front door, the south bridge at the junction with South Street bridge connected. Built before 1550 outside the city is the Temple of Heaven to the Emperor out of the city, mountains and rivers of the Royal Road altar built outside the city outside the city after the main north-south streets. Long Street, 1 600 meters, 20 meters wide carriageway. Ming and Qing to the Republic of China called Zhengyang Gate Avenue when the public street known as the front door. 1965, officially named as the front street. Ming Square, Qianmen Avenue, is due east and due west of the line Square to Boundary Street Center, the East is due east Square, West Square, is due west. Zhengyang because the main entrance door is the capital, the streets along the front street than the other gate width. Formed in the city, the city break out followed by the Yuan Dynasty, "the former having" custom, Zhengyang door and around the fish as far south as the mouth, Langfang Hutong area, forming a large commercial area.