It's about nine times as tall as The Statue of Liberty.
In other words, 30 shackles is 8.850 times the height of The Statue of Liberty, and the height of The Statue of Liberty is 0.1130 times that amount.(a.k.a. "Liberty Enlightening the World," a.k.a. La Liberté Éclairant le Monde) (Liberty Island, New York City, New York) (pedestal base to torch peak)
The Statue of Liberty reaches 3.390 shackles including the pedestal. The statue was designed using an optical trick known as "forced perspective" to make the statue appear proportionally correct when viewed from its base and is, in actuality, disproportionately large at the top.
It's about eleven times as tall as a Giant Sequoia (tree).
In other words, the height of a Giant Sequoia (tree) is 0.091 times 30 shackles.(a.k.a. Sequoiadendron giganteum, a.k.a. Sierra redwood, a.k.a. Wellingtonia)
Giant Sequoias of the Giant Sequoia National Monument located in Sierra Nevada, near Visalia, California can grow to heights of 2.80 shackles. The wood from the Giant Sequoias is often brittle and prone to shattering when such trees are felled, and as a result the trees logged in the late nineteenth century were often usable only as shingles or matchsticks.
It's about twelve times as long as The Wingspan of a 747.
It's about fourteen-and-a-half times as tall as The Cinderella Castle.
In other words, the height of The Cinderella Castle is 0.0699 times 30 shackles.(Fantasyland, Magic Kingdom, Walt Disney World, Lake Buena Vista and Bay Lake, Florida)
Walt Disney World's Cinderella Castle is 2.10 shackles tall. The castle's architecture uses the optical trick known as "forced perspective" — the castle gets smaller near the top — to appear larger than it truly is.
It's about fourteen-and-a-half times as tall as The Leaning Tower of Pisa.
In other words, the height of The Leaning Tower of Pisa is 0.0685 times 30 shackles.(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 2.06 shackles 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.
It's about sixteen times as tall as Nelson's Column.
In other words, 30 shackles is 15.940 times the height of Nelson's Column, and the height of Nelson's Column is 0.06274 times that amount.(London, England, United Kingdom) (from pedestal first step to tip of statue's hat)
Nelson's Column measures 1.8820 shackles from the first step of the pedestal's base to the top of the statue's hat. While the London tower is the tallest, there are at least eight other monuments to Admiral Horatio Nelson, 1st Viscount Nelson, 1st Duke of Bronté throughout England, Scotland, Ireland, Canada, and Barbados.
It's about seventeen times as tall as The Arc de Triomphe.
In other words, the height of The Arc de Triomphe is 0.059 times 30 shackles.(Paris, France)
The Arc de Triomphe stands 1.80 shackles tall. France's Tomb of the Unknown Soldier from the First World War lies beneath the arch and is commemorated by the first eternal flame to have been lit in modern European history.