Introduction: Ferrara Cathedral was built in the 12th century AD, with a three-fold facade consisting of three layers of walls, each with a different style. The altar on the second floor of the church's central facade is beautiful, the upper biblical story "The Last Judgment", the sculpture is vivid, the middle layer through four characters crawling out of the coffin forest, depicting the concept of hell, and the lower layer of the carved porch platform, with the statue of the Virgin and the Son.