The construction of the Tower of Pisa began on August 9, 1173 in Pisa, Tuscany, Italy. Originally designed to be a bell tower, the tower actually stood upright for over five years. It was not until the third floor was built did the tower begin to lean. The tilt in the tower was caused by poor foundation on ground too soft on one side to properly support the structure's weight. The height of the tower is one hundred and eighty- three point twenty-seven feet from the ground on the low side and one hundred and eighty-five point ninety-three feet.
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Due to safety reasons the tower was closed from 1990-until December 15th 2001, this caused money problems. The design process alone cost twenty-five million taxpayer dollars. Since the tower was closed to tourist for that period of time it was said that Pisa would lose about two million dollars in revenue per year. In conclusion the Pisa Tower today is looked at as a miracle in many different ways. The soil on which the tower was built on was very unstable and difficult to work with afterwards to save this historical building.