It's about half as tall as The Eiffel Tower.
In other words, 520.97 feet is 0.49 times the height of The Eiffel Tower, and the height of The Eiffel Tower is 2.04 times that amount.(a.k.a. La Tour Eiffel) (Paris, France) (to flagpole peak)
The Eiffel Tower stands 1,060 feet tall, including its flagpole. The Tower is the largest structure in Paris as most other buildings are governed by a zoning restriction limiting them to a height of 121 feet or less.
It's about two times as tall as a Giant Sequoia (tree).
In other words, 520.97 feet is 2.1 times the height of a Giant Sequoia (tree), and the height of a Giant Sequoia (tree) is 0.48 times that amount.(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 250 feet. 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 two-and-a-half times as long as The Wingspan of a 747.
In other words, 520.97 feet is 2.32 times the length of The Wingspan of a 747, and the length of The Wingspan of a 747 is 0.431 times that amount.(a.k.a. Boeing 747, a.k.a. Jumbo Jet, a.k.a. Queen of the Skies) (for Boeing 747-8 series)
The wingspan of a Boeing 747-8 is 225 feet. Fully loaded, the 747 can travel 27,200,000 feet before refueling.
It's about two-fifths as tall as The Empire State Building.
In other words, 520.97 feet is 0.41677 times the height of The Empire State Building, and the height of The Empire State Building is 2.3994 times that amount.(New York City, New York) (to top of building)
The Empire State Building stands 1,250 feet to its architectural peak. The spire emerging from the top of the building was originally intended to be a mooring mast for blimps whose passengers could disembark onto a landing platform on the 102
It's about three times as tall as The Cinderella Castle.
In other words, 520.97 feet is 2.76 times the height of The Cinderella Castle, and the height of The Cinderella Castle is 0.362 times that amount.(Fantasyland, Magic Kingdom, Walt Disney World, Lake Buena Vista and Bay Lake, Florida)
Walt Disney World's Cinderella Castle is 189 feet 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 three times as tall as The Leaning Tower of Pisa.
In other words, 520.97 feet is 2.82 times the height of The Leaning Tower of Pisa, and the height of The Leaning Tower of Pisa is 0.355 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 185 feet 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-third as tall as The Petronas Twin Towers.
In other words, 520.97 feet is 0.3514 times the height of The Petronas Twin Towers, and the height of The Petronas Twin Towers is 2.846 times that amount.(a.k.a. Menara Berkembar Petronas, a.k.a. Petronas Towers) (Kuala Lumpur, Malaysia) (to spire)
Each of the Petronas Towers stands 1,483 feet to their spires. Holding the record as the tallest buildings in the world from 1998 to 2004, the towers continue to hold the record for the deepest foundation barrettes — up to 377.3 feet deep.