Coming to the ancient city's Weapons Square, the most prominent is Catedral Del Cuzco. Brick red buildings, tall bell towers, dignified crosses, need to walk up the steps to get to the entrance. The wall above the door is carefully carved. The church looks like a church in Europe, but it is large, with chapels beside and behind the main building. The front three doors are dark green, and on one side of the Cathedral are buildings with arcades, with Spanish decorative style. When we go there, the entrance goes by the side door. The ticket is 25 pesos (1 pesos = 2 RMB). On that day, it seemed that there were religious groups visiting. The staff were very strict. Photographs were strictly prohibited. Like most churches, it's quiet and the followers pray together. Large religious paintings on the walls tell doctrines and historical stories. Religious figure sculptures stand erect and display some ancient religious supplies. The stone floor of the church is polished, and every detail shows its ancient and vicissitudes. Sitting in the church for a while, gazing at the high altar, feeling the mystery of religion. According to information, the Arms Square was the most important political, economic and military center of the Inca Empire. Now the metal statue of Inca King Pachakuti still overlooks the formerly brilliant weapons square with a scepter in hand. People are relaxing and chatting in the square. They can also see women and children wearing traditional Inca clothes. Some of them are also carrying germinating alpacas to sell the earliest corn planted by the Incas. Although the temperature is very high, the sunshine is hot, tourists are bustling, and they are interested in exploring the past and present life of this splendid cultural birthplace of the Inca. The World Heritage Assessment Committee commented that the ancient city of Cusco, located in the Andes Mountains of Peru, had developed into a complex city centre with unique religious and administrative functions under Inca ruler Pachakuti. The ancient city is surrounded by clearly visible agricultural, handicraft and industrial areas.