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The tower was closed to tourists during this time. The tower and cathedral were declared a UNESCO World Heritage Site in 1987.Īfter the collapse of a tower in Pavia, restoration efforts from 1989 to 2001 were put into place. There are 294 steps on the north side and 296 steps on the south side. If you look closely at photographs, you can see that the tower has a slight curve to it. The upper levels of the tower were built at an angle to offset the lean. The tower began leaning even before construction was finished. It took almost 200 years to build the Leaning Tower of Pisa. Interesting Facts About the Leaning Tower of Pisa How to Get to the Leaning Tower of Pisa.Interesting Facts About the Leaning Tower of Pisa.That won’t be for a while, though, so you’ve still got plenty of time to pose for Italy’s most iconic photo. Some engineers have predicted the tower will straighten out completely in the future. Measurements for 2022 show that the building has righted itself by an additional four centimeters since 2001.Īn assessment in 2005 declared the monument safe for the next 300 years. How much has the Leaning Tower of Pisa straightened?Įach year, the tower undergoes a tilt check-up. They installed drains to extract some of the water and level out the foundations. The team also realized that the water table beneath the structure was uneven, causing it to slant further during winter rains. The engineers removed earth from the higher side of the tower’s foundation and used steel cables to pull it upright. Instead, they opted for a costly soil extraction project. The committee concluded that modifications to the fragile foundations could exacerbate problems so common solutions like cement injections had to be rejected. How is the Leaning Tower of Pisa’s tilt being corrected? The monument was closed to visitors, and in 1993, civil engineer Michele Jamiolkowski convened an international board to intervene. In the 1990s, it was deemed prudent to begin a stabilization project. gettyīut the famous tilt was once considered perilous. Visitors standing in the shadow of the Leaning Tower of Pisa are in no imminent danger.

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