A leaning tower is a tower which, due to errors in design or construction or to subsequent external influence, does not stand at right angle to the ground. The most famous of these is the Leaning Tower of Pisa. Others can be found elsewhere in Pisa itself, in Bologna, throughout Italy, and in China.
Among the Chinese examples, for example, are the Huqiu Tower in Suzhou (Jiangsu), the Huzhu Tower of Tianma Mountain near Shanghai, Qianwei 's Leaning Tower in Suizhong County (Liaoning) and even the deliberately tilted Iron Tower of Yuquan Temple (Hubei).
All of these predate the construction of the more famous edifice in Pisa, often by centuries.
An inclined tower is a tower that was intentionally built at an incline. The world's tallest inclined tower is the tower of the Stade Olympique in Montreal.
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