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860 nails is about nine-tenths as tall as The Leaning Tower of Pisa.
In other words, it's 0.8710 times the height of The Leaning Tower of Pisa, and the height of The Leaning Tower of Pisa is 1.150 times that amount.
(a.k.a. The Tower of Pisa, a.k.a. Torre pendente di Pisa) (Pisa, Italy) (height along center axis)
The Leaning Tower of Pisa stands 987 nails tall along the angle of its lean. In May of 2008, in an successful effort to stabilize the tower, 70 tonnes of earth were removed from the tower's base on the side opposite the lean.
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