Xi'an, an ancient city with a thousand-year history, was once the stage for Shang Yang to implement reforms, and it also witnessed the moment when the Qin Dynasty declined from prosperity. Its name, like a double-edged sword, symbolizes both prosperity and decline. Chang'an, on the other hand, is a witness to the prosperity of the Han and Tang Dynasties. It welcomes envoys and merchants from all over the world with a more open and inclusive attitude. The prosperity of Chang'an City is not only reflected in the hustle and bustle of the market, but also in the writings of poets. The "Xianyang" described by Li Bai actually refers to Chang'an. This mix of place names just reflects the charm of this city-it is both a political center and a cultural holy land.