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The Leaning Tower of Pisa

Leaning Tower of Pisa is one of the forgotten wonders of the world. Pisa is a city in central Italy, in the center of Tuscany. It is located on the River Arno and is one of the major tourist centers of Europe. The tower is located in the part of the town called Piazza del Duomo. The tower was built in the Romanesque style. It is famous for its leaning position. Often, it is believed that the slope of the tower has something to do with mystical powers, but the reality is that this happened because of the composition of the ground on which tower was built. This tower is 55 meters high and has eight floors. The eighth floor is the belfry, and is somewhat smaller diameter than other floors. Even thou there are still bells in the tower they do not ring any more. Exterior of the tower is decorated with multicolor marble on which drawings are carved. At the front door, which was specifically decorated, there are carved drawings of animals. The interior of the tower features 294 spiral stairs to the belfry.

The construction of the tower began in 1173 and lasted nearly 200 years. The main reasons for this were structural problems with the tower. When the first three floors were built he began to sink slowly to the ground. Building of the tower stopped for 100 years because of that. The first attempt to correct the wrong slope of Pisa tower was in 1275 when construction continued. In 1301 six stories were finished, and the final completion of the tower was in 1350.  But with the completion of construction the tower continued to sink in the ground. Each year its vertical gradient increased for one millimeter. The worst case was a vertical gradient of up to 5 meters. Since 1990 a tour of the interior of the tower is closed to visitors due to security.


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