The Leaning Tower of Pisa is estimated to fall over in another 200 years from now.
However nobody knows for sure when the Leaning Tower of Pisa will fall over if it will.
However nothing will stand forever and eventually the Leaning Tower of Pisa will fall over whether it be 200 years from now or 2000 years from now or longer.
The Leaning Tower Of Pisa will likely eventually fall over.
It's estimated that the Leaning Tower of Pisa may fall over within the next 200 years or so.
So the Leaning Tower of Pisa is likely to stand for at least a few more generations before it does fall over sometime way into the future.
The Leaning Tower of Pisa was completed in the year of 1372.
The groundbreaking for the Leaning Tower of Pisa started in 1173.
Experts say the famous Leaning Tower Of Pisa will lean for at least another 200 years before it may fall.
It may even stay upright well, almost upright forever.
A few ill-advised construction projects accelerated the Leaning Tower's invisibly slow fall during the past couple of centuries; it tilted 5.5 degrees, its acutest angle ever, in 1990.
Construction of the Leaning Tower of Pisa occurred in three stages over 199 years.
On 5 January 1172, Donna Berta di Bernardo, a widow and resident of the house of dell'Opera di Santa Maria, bequeathed sixty soldi to the Opera Campanilis petrarum Sancte Marie.
The sum was then used toward the purchase of a few stones which still form the base of the bell tower.
On 9 August 1173, the foundations of the tower were laid.
Work on the ground floor of the white marble campanile began on 14 August of the same year during a period of military success and prosperity.
This ground floor is a blind arcade articulated by engaged columns with classical Corinthian capitals.
Nearly four centuries later Giorgio Vasari wrote: "Guglielmo, according to what is being said, in the year 1174, together with sculptor Bonanno, laid the foundations of the bell tower of the cathedral in Pisa".
The tower began to sink after construction had progressed to the second floor in 1178.
This was due to a mere three-meter foundation, set in weak, unstable subsoil, a design that was flawed from the beginning.
Construction was subsequently halted for almost a century, as the Republic of Pisa was almost continually engaged in battles with Genoa, Lucca, and Florence.
This allowed time for the underlying soil to settle.
Otherwise, the tower would almost certainly have toppled.
On 27 December 1233, the worker Benenato, son of Gerardo Bottici, oversaw the continuation of the tower's construction.
On 23 February 1260, Guido Speziale, son of Giovanni Pisano, was elected to oversee the building of the tower.
On 12 April 1264, the master builder Giovanni di Simone, architect of the Camposanto, and 23 workers went to the mountains close to Pisa to cut marble.
The cut stones were given to Rainaldo Speziale, worker of St. Francesco.
In 1272, construction resumed under Di Simone. In an effort to compensate for the tilt, the engineers built upper floors with one side taller than the other.
Because of this, the tower is curved.
Construction was halted again in 1284 when the Pisans were defeated by the Genoese in the Battle of Meloria.
The seventh floor was completed in 1319. The bell-chamber was finally added in 1372.
It was built by Tommaso di Andrea Pisano, who succeeded in harmonizing the Gothic elements of the belfry with the Romanesque style of the tower.
There are seven bells, one for each note of the musical major scale.
The largest one was installed in 1655.