It's about three-tenths as tall as The Singapore Flyer (Ferris wheel)
In other words, 28.20 fathoms is 0.3130 times the height of The Singapore Flyer (Ferris wheel), and the height of The Singapore Flyer (Ferris wheel) is 3.190 times that amount.(a.k.a. 新加坡摩天观景轮, a.k.a. சிங்கப்பூர் ஃப்ளையர், a.k.a. Pelayang Singapura) (Marina Centre, Singapore)
The Singapore Flyer has a height of 90.20 fathoms. Based on recommendations from Feng Shui masters, the wheel was re-engineered to spin in the opposite direction five months after it began operating.
It's about three-tenths as tall as The Washington Monument
In other words, 28.20 fathoms is 0.304640 times the height of The Washington Monument, and the height of The Washington Monument is 3.28260 times that amount.(Washington, D.C.)
The Washington Monument measures 92.5690 fathoms tall, with some discrepancy due to the fact that the Monument's base is slightly below the surrounding ground. Interrupted in its construction by the American Civil War, it was almost 36 years between groundbreaking and the completion of construction.
It's about three-tenths as tall as St. Paul's Cathedral
In other words, 28.20 fathoms is 0.2960 times the height of St. Paul's Cathedral, and the height of St. Paul's Cathedral is 3.380 times that amount.(London, England, United Kingdom)
St. Paul's Cathedral measures 95.10 fathoms to its peak. The southwest tower of the Cathedral contains the bell known as "Great Paul," which is the largest bell in Great Britain at 15,000 kg (16.5 tons), outweighing the more iconic Big Ben bell by about 3,000 kg (3 tons).
It's about three-and-a-half times as tall as The Hollywood Sign
In other words, the height of The Hollywood Sign is 0.290 times 28.20 fathoms.(a.k.a. Hollywoodland Sign) (Mount Lee, Hollywood Hills, Santa Monica Mountains, California)
Each of the white letters in the Hollywood Sign measures 8.20 fathoms tall. Built as an advertisement in 1923, the sign was intended to stand for only eighteen months.
It's about three-and-a-half times as long as a Semitrailer
In other words, 28.20 fathoms is 3.5250 times the length of a Semitrailer, and the length of a Semitrailer is 0.28370 times that amount.(a.k.a. semi-trailer truck, a.k.a. semi, a.k.a. tractor-trailer, a.k.a. truck and trailer, a.k.a. eighteen-wheeler, a.k.a. big rig, a.k.a. Mack truck, a.k.a. transport, a.k.a. lorry, a.k.a. artic; for box truck; United States Federal length limits)
According to the United States Department of Transportation (DOT), the maximum allowable length of a semitrailer pulled by a road tractor truck is 8 fathoms (unless superseded by state law). These regulations also allow the vehicles to tow up to 36,000 kg in gross weight.
It's about three-tenths as tall as The Space Needle
In other words, 28.20 fathoms is 0.280 times the height of The Space Needle, and the height of The Space Needle is 3.570 times that amount.(Seattle, Washington) (to aircraft warning beacon at peak)
Built for a 1962 World's Fair, the Space Needle stands 101 fathoms tall. With a track-and-wheel design inspired by railroad mechanics and a precisely-configured balance, the restaurant near the top of the space needle requires just a 1.5 hp motor to rotate at speeds of about 0.053 kph (0.033 mph).
It's about four times as tall as a Brachiosaurus
In other words, the height of a Brachiosaurus is 0.250 times 28.20 fathoms.(based on comparable bone measurements, height to head)
Dinosaurs in the genus Brachiosaurus had an estimated height (at the head with neck fully extended) of up to 7.10 fathoms. A resin cast of the first Brachiosaurus specimen, owned by the Field Museum in Chicago, is currently on display at the O'Hare International Airport.