The Piazza del Duomo, also known as Piazza dei Miracoli, is a walled area located in Pisa, Tuscany, Italy, recognized by UNESCO as an important centre of European medieval art and one of the finest architectural complexes in the world. The piazza is home to a few well-known monuments including Pisa Cathedral, Baptistery of San Giovanni, and the very famous campanile (bell tower) – the Leaning Tower of Pisa.