14. Leaning Tower of Pisa
Another one of the symbols of the country, one of the most recognizable landmarks in Italy. It is not an optical illusion, and at the same time the architects did not anticipate that the tower so lean.
As soon as the construction reached the third tier, as the tower began to sink into the ground due to poor foundation, and the slope became apparent. Currently, work is underway to strengthen the Leaning Tower of Pisa in order to preserve it for posterity.
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