Xi'an is subordinate to Shaanxi Province of China and located in the middle reaches of the Yellow River. It is the ancient capital of China's 13 dynasties with rich historical heritage. It is not only the starting point of China's reunification, but also the spiritual symbol of Chinese civilization. Here, the prosperity of the bell and Drum Tower, the grandeur of the terracotta warriors and horses, and the massiveness of the wild goose pagoda make us vaguely intertwined with time and dream back to the Tang Dynasty.