Spain, Barcelona... The Hall of Family is the legacy of Anthony Gaudi (1852-1926), the great Spanish architect. In 1883, Gaudi officially took over until 43 years later, when he died in a car accident, he was busy building the Sacred Family Hall. There were some Catholics who were dissatisfied with the decadence of our society. They planned to build an atonement church for the believers to come here and pray for forgiveness for the guilty. This is the origin of the Church of Saint Family. After Gaudi's death, he left behind a lot of materials, designs and models, but most of them were destroyed by anarchists during the Spanish Civil War, and the project stopped until 1952. At present, nearly 60 [%] of the building has been completed. The main economic sources are social donations and ticket revenue. The official estimate for completion is 2026. From Gaudi's design of such a complex and extremely difficult building, it is not difficult to see that he himself has a high degree of devotion and respect for religious beliefs. After taking over the construction of the Saint Family Atonement Hall, Gaudi devoted all his efforts to it and did not design any other buildings. For Gaudi, the Holy Family Atonement Hall is not only a house built for God, but also a book that every visitor can read - The Doctrine Question and Answer Manual. The scenes in the Bible are shown as pictures in the whole building. The facade of the building is undoubtedly the best stage to reflect these religious scenes. There are three grand facades in the church: birth, death and glory. The theme of each facade represents one aspect of Jesus'priesthood: as a man on earth, as the Savior of mankind, as a judge of life and death on the final judgment day. At the time of Gaudi's death, the Oriental expression of Jesus as the birth facade of the Earth was basically completed. The walls were covered with extremely elaborate decorations and sculptures, mostly with the characters and scenes in the Bible as subjects, showing incomparable superb architectural skills.