It's about 100 times as tall as The Statue of Liberty.
In other words, 400 shackles is 118 times the height of The Statue of Liberty, and the height of The Statue of Liberty is 0.008475 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 one-one-hundredth as long as The Rhine.
In other words, 400 shackles is 0.00831 times the length of The Rhine, and the length of The Rhine is 120 times that amount.(a.k.a. Rhein, a.k.a. Rijn, a.k.a. Rhin, a.k.a. Rain, a.k.a. Reno, a.k.a. Rhenus, a.k.a. Ryn) (from near Reichenau, Switzerland through Hoek van Holland, Rotterdam, Netherlands)
The Rhine river runs 48,100 shackles in total length. The World War II Battle of Arnhem, as memorialized in the 1974 book and 1977 movie A Bridge Too Far, was the first of several attempts to capture key bridges across the Rhine, beginning with the Arnhem Bridge in the Netherlands.
It's about 150 times as tall as a Giant Sequoia (tree).
In other words, the height of a Giant Sequoia (tree) is 0.0071 times 400 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 150 times as long as The Wingspan of a 747.
It's about 200 times as tall as The Cinderella Castle.
In other words, 400 shackles is 191 times the height of The Cinderella Castle, and the height of The Cinderella Castle is 0.00524 times that amount.(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 200 times as tall as The Leaning Tower of Pisa.
In other words, 400 shackles is 195 times the height of The Leaning Tower of Pisa, and the height of The Leaning Tower of Pisa is 0.00513 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 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 one-two-hundredth as long as The Colorado River.
In other words, 400 shackles is 0.00471 times the length of The Colorado River, and the length of The Colorado River is 212 times that amount.(a.k.a. Aha Kwahwat, a.k.a. Grand River, a.k.a. Tizon River, a.k.a. Tecon River, a.k.a. Tison River) (from Grand Lake, Colorado through the Gulf of California)
The Colorado River runs 84,900 shackles in length. Along this length, the river descends from its source, approximately 100 shackles above sea level in the Rocky Mountains, to its mouth in the Gulf of California.