Because of the Leaning Tower of Pisa, it was known that the square where the Leaning Tower of Pisa was originally located was the Square of Miracles. The Piazza dei Miracoli is located in the northwest corner of the city of Pisa. In addition to the world-famous Leaning Tower of Pisa, there are also buildings such as the Pisa Cathedral, the Baptistery of St. John, and the cemetery. It is located on a wide square grass on the square. The exterior color of the entire building complex is very uniform, each is relatively independent but forms a unified Roman architectural style, each has its own unique style and is very unified and coordinated. There are ancient walls and gates around the Miracle Square. The building complex of the Piazza dei Miracoli is a typical medieval religious building complex and was included in the World Heritage List in 1987.