Notre Dame Cathedral is one of the five great churches in the world. It is well-known and naturally worth visiting. The church is located in the historic center of Florence, Italy. The church complex consists of cathedrals, bell towers and baptism halls. It was listed as a part of the Florence historical center in 1982 as a world cultural heritage site. The interior of the church is Latin cross, 153 meters long and 38 meters wide. It can accommodate 10,000 people at the same time. It is the fourth Cathedral in the world. Genius architect Philip Brunellesky imitates the church dome designed by the Roman Pantheon. It is 91 meters high and 45.52 meters in diameter. It is the perfect combination of classical art and science at that time. Even the Pope marvels at the "mythological general". The 85-meter-high bell tower on the right side of the church is covered with white, green and pink granite, which belongs to the Florentine Gothic style. There are 370 steps in the building, which can be climbed to overlook the whole city. St. Giovanni Baptist Hall is located several meters west of the cathedral. It is a white octagonal Roman building. Florence's children are baptized here, including Dante, Machiavelli and other celebrities. Three bronze doors of the Baptist Hall are engraved with bronze reliefs of the Old Testament story. Two of them are masterpieces of Djibouti's 21-year history. The plot of the Old Testament is divided into ten pictures, which Michelangelo praised as the Gate of Heaven. The church is impressive in its large scale, exquisite and complex appearance. Because the church is located in the center of the city and there are no broad streets around it, it is very difficult to get a panoramic view of the square.