The tower's tilt began during the construction of the second floor in 1178.
Benito Mussolini ordered the tower to be straightened in 1934 by drilling holes and injecting concrete, which only caused it to sink further into the mud.
There are seven bells in the tower, each tuned to a specific musical note and named after a saint.
The tower's foundation is only three meters deep, which is insufficient for a structure of its weight on unstable ground.
The tower is actually curved; builders adjusted the masonry on higher levels to compensate for the tilt, resulting in a slight banana-like shape.
Galileo Galilei allegedly used the tower to conduct experiments on gravity, dropping objects of different weights to prove they fall at the same speed.
The structure contains no internal lift, requiring all visitors to ascend the spiral staircase on foot.
The Tower of Pisa is a freestanding bell tower in the Piazza del Duomo, recognized globally for its unintended 3.97-degree tilt. Construction began in 1173 and spanned nearly 200 years due to intermittent wars and structural instability caused by soft, clay-rich soil. The structure consists of eight levels, including a bell chamber, standing approximately 56 meters tall. Its exterior features white marble arcades with decorative columns and Romanesque arches. Engineers completed stabilization work between 1990 and 2001 to prevent collapse by removing soil from beneath the northern foundation. Visitors may climb the 251 steps to reach the top gallery for views of the surrounding religious complex. It serves as the bell tower for the adjacent Pisa Cathedral. The tower is part of a UNESCO World Heritage site known as the Piazza dei Miracoli.
The grass area at the southern end of the Piazza provides the classic angle for capturing the tower's perspective.
Book tickets well in advance online as visitor numbers are strictly limited per time slot.
Wear comfortable, non-slip shoes, as the internal marble steps are worn and can be slippery.
Leave large bags and backpacks in the mandatory off-site luggage storage facility before attempting the climb.
Do not wait until the day of your visit to purchase tickets, as sell-outs are common year-round.
Maintain a respectful tone as the tower is part of a consecrated religious complex; shoulders and knees should be covered.