Buy tickets & tours:GetYourGuide The Leaning Tower of Pisa is the freestanding bell tower of the Cathedral of Santa Maria Assunta in Pisa. It stands in Piazza del Duomo, the monumental religious square also known as Piazza dei Miracoli. The tower is famous worldwide for its unintended tilt, caused by unstable ground beneath its foundation. Although it is usually treated as an independent monument, the Leaning Tower of Pisa was built as part of the cathedral complex. Its function was religious and practical, not defensive. The seven bells at the top marked liturgical moments, public time, and ceremonies connected with the life of the cathedral and the city. Piazza del Duomo has been a UNESCO World Heritage Site since 1987. The square includes the cathedral, the Baptistery of San Giovanni, the Camposanto, the Opera del Duomo Museum, the Sinopie Museum, and the Leaning Tower of Pisa. Together, these monuments form one of the most important medieval architectural ensembles in Italy. Today, the Leaning Tower is not only a symbol of Pisa, but also a major example of medieval engineering, structural risk, and modern conservation. Its survival is the result of long construction pauses, later corrections, and major stabilization works carried Read more [...]