Their style is unique, their rock and roll is ever changing, and they are NAMO band. 202 1 Xi' an trip to NAMO band is about to begin. Let us feel the memories in their music.

Xi 'an Annan Gate, also known as Nantianmen and Yongning Gate. It is one of the four gates of the ancient city Xi 'an. The east gate is Changle, the west gate is Anding, the south gate is Yongning, and the north gate is Anyuan; The four initials are linked together, meaning "Chang 'an".

Each gate of the city wall has three gatehouses: Quelou, Arrow Tower and Main Tower. Quelou is outside, Arrow Tower is in the middle, and the main building is included. Between the watchtower and the main building is an urn. Standing on the wall of the urn, it is easy to remind people of the idiom "catching turtles in a jar" Xi 'an City Wall was built in the Hongwu period of the Ming Dynasty (1370- 1378), which was formed on the basis of the wall of the Sui and Tang Dynasties in the 6th century, with a circumference of 139 12m. The wall is12m high,18m wide at the bottom and15m wide at the top. The thickness is greater than the height, and the building is stable and firm.

Starting from 1983, the construction project around the city gradually built a park around the city with the ancient city wall as the main line, supplemented by the greening around the city, and surrounded by a moat. The style is simple, rough and wild, with strong local characteristics. With the city wall as the main body, it includes a series of military facilities such as moat, suspension bridge, lock tower, arrow tower, main building, turret, parapet pile and city gate. It constitutes a strict and complete urban defense system in the era of cold weapons, and provides a precious cultural landscape for tourists to intuitively understand ancient wars.