Pisa's Piazza del Duomo, also known as Piazza dei Miracoli (Piazza of Miracles) is an expansive, grassy field dominated by three, white marble, monumental works of architecture: the cathedral, babtistery, and campanile. They are famous for their construction and location at the entrance of Pisa, as well as for the campanile's infamous inclination, causing it to be called the "Leaning Tower of Pisa." While these three structures were commonly all part of a single church in northern Europe, their existence as three individual entities is typical of Italian practice of this era. A fourth structure, a walled cemetery, provides an edge on the north side of the site. 							