How Engineers Straightened the Leaning Tower of Pisa

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How Engineers Straightened the Leaning Tower of Pisa
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How Engineers Straightened the Leaning Tower of Pisa

Construction on the Tower of Pisa first began in the year 1173. By 1178, the architects knew they had a problem on their hands. Built on an unsteady foundation, the tower began to sink under its own w

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