THE LEARNING TOWER OF PISA (Top 100 Places to visit):-
The Leaning Tower of Pisa is one of the most significant architectural structures from medieval Europe. The leaning Pisa tower is one of the four buildings that make up the cathedral complex in Pisa. Tower of Pisa is 60 meter high and leaning at about a 10 degree angle.
In August 1173, construction of Tower of Pisa began and continued for about 200 years due to the inception of a series of wars. Till today, the name of the architect is a mystery for all. Actually it is a bell tower; the tower has eight stories, including the chamber for the bells.
The foot story consists of 15 marble arches. Each of the next six stories contains 30 arches that surround the tower. The final story is the bell chamber itself, which has 16 arches. There is a 297 step spiral staircase inside the tower leading to the top.
Various efforts have been made to re-establish the tower to a vertical orientation or at least keep it from falling over. So on February 27, 1964, the government of Italy requested aid in preventing the tower from toppling.
Multinational groups of engineers, mathematicians, and historians gathered on the Azores islands to discuss stabilization methods. It found that the tilt increasing in combination with the softer foundations on the lower side. Many methods proposed to stabilize the tower, including the addition of 800 tons of lead counterweights to the raised end of the base.
Tower has scientific history too. Galileo Galilei , said to have dropped two cannonballs of different masses from the tower to demonstrate that their speed of descent was independent of their mass.
In 1987, the Leaning Tower of Pisa was declared a UNESCO World Heritage Site, along with the entire Piazza Del Duomo.
In 1990, the Leaning Tower closed,bells removed and the tower anchored. Reopened in 2001 for tourists, the leaning tower of Pisa is finally sturdy and safe for tourists. Therefore Leaning Tower Of Pisa is one of the most attractive building in country. And also backbone of tourism sector. Hence it is correct to say that mistakes often makes new things.