· It is the main church of the Catholic Archdiocese of Florence and the tallest building in the city. It is a 463-step church overlooking the panoramic view of Florence. It is one of the five cathedrals in the world and has been named the most beautiful church in the world. The poet Xu Zhimo translated it as "Cold Cui". · Renaissance representative buildings. Red, green and white are beautifully decorated. The complex consists of the main church, bell tower and baptism hall.