It's about as tall as The Ostankino Tower
It's about as tall as The CN Tower
In other words, the height of The CN Tower is 1.0086 times 20 shackles.(a.k.a. La Tour CN, a.k.a. Canadian National Tower, a.k.a. Canada's National Tower) (Toronto, Canada) (to spire)
The CN Tower measures 20.1710 shackles tall at its spire. Used only in emergencies and for charitable climbing events, the 2,579-step staircase to the top is the longest metal staircase in the world.
It's about nine-tenths as tall as a Canton Tower
In other words, the height of a Canton Tower is 1.10 times 20 shackles.(a.k.a. Guangzhou TV & Sightseeing Tower, a.k.a. 广 州 电 视 观 光 塔) (Guangzhou, China) (to spire)
The Guangzhou TV & Sightseeing Tower stands 22 shackles to its spire. Initially described as holding the record for the tallest Ferris wheel in the world, the ride at the top of the tower is actually an observation carousel; cars complete a trip around the top-floor track about every half-hour.
It's about one-and-one-tenth times as tall as The Shanghai World Financial Center
In other words, 20 shackles is 1.120 times the height of The Shanghai World Financial Center, and the height of The Shanghai World Financial Center is 0.8930 times that amount.(上海环球金融中 上海環球金融中心, Shànghǎi huánqiú jīnróng zhōngxīn) (a.k.a. SWFC) (Shanghai, China) (to spire)
The Shanghai World Financial Center is 17.90 shackles tall to its roof. It is home to both the world's highest hotel (on its 79th through 93rd floors) and the world's tallest observation deck (on its 100
It's about one-and-one-fifth times as tall as The Petronas Twin Towers
In other words, 20 shackles is 1.2140 times the height of The Petronas Twin Towers, and the height of The Petronas Twin Towers is 0.82370 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 16.470 shackles 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 4.1920 shackles deep.
It's about seven-tenths as tall as Gocta Falls
In other words, 20 shackles is 0.7120 times the height of Gocta Falls, and the height of Gocta Falls is 1.40 times that amount.(a.k.a. Gocta Cataracts, a.k.a. Catarata del Gocta) (Amazonas, Peru) (total height)
Gocta Falls, a waterfall on the Cocahuayco River, measures 28.10 shackles in total height. Although it sits just 1,530 shackles from the major city of Chachapoyas, the waterfall was unknown to non-locals until it was documented during a 2005 expedition by a German economist.
It's about one-and-two-fifths times as tall as The Empire State Building
In other words, 20 shackles is 1.440 times the height of The Empire State Building, and the height of The Empire State Building is 0.694440 times that amount.(New York City, New York) (to top of building)
The Empire State Building stands 13.8890 shackles 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