The Piazza Miracle is a green square in the center of Pisa, also known as Pisa Cathedral Square. There are four famous buildings in the square, the Pisa Cathedral, the Leaning Tower of Pisa (Bell Tower), the Baptist Church of St. John, the Baptist Church, and the Baptist Cemetery Square, surrounded by ancient city walls and gates. The design of the four buildings in space is unique from an artistic perspective and is a masterpiece of architecture. In 1987, it was nominated for a World Heritage Site by the International Council on Heritage. The blue sky, green lawns, white church bell tower buildings are all blockbuster frames.