It's about three-tenths as tall as The Washington Monument.
In other words, 27 fathoms is 0.291670 times the height of The Washington Monument, and the height of The Washington Monument is 3.42850 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, 27 fathoms is 0.2840 times the height of St. Paul's Cathedral, and the height of St. Paul's Cathedral is 3.520 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 one-fourth as tall as The Space Needle.
In other words, 27 fathoms is 0.2680 times the height of The Space Needle, and the height of The Space Needle is 3.730 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, 27 fathoms is 3.80 times the height of a Brachiosaurus, and the height of a Brachiosaurus is 0.260 times that amount.(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.
It's about four-and-a-half times as tall as a Telephone Pole.
In other words, the height of a Telephone Pole is 0.220 times 27 fathoms.(a.k.a. Utility Pole, a.k.a Power Pole, a.k.a. Telegraph Pole, a.k.a. Telegraph Post, a.k.a. Hydro Pole) (exposed height; per Florida Public Service Commission average)
A standard telephone pole is 6 fathoms tall. Despite alternatives, most telephone poles in the US are made of wood — most commonly pine — and have a lifespan of 25 to 50 years, depending on climate and preservatives applied.
It's about one-fifth as tall as The Golden Gate Bridge.
In other words, 27 fathoms is 0.2180 times the height of The Golden Gate Bridge, and the height of The Golden Gate Bridge is 4.590 times that amount.(San Francisco, California and Marin County, California) (height above water)
The height of each tower of Golden Gate Bridge is 124 fathoms above the surface of the San Francisco Bay. One of the key designers of the bridge, Charles Ellis, had no engineering degree when he began working on the project, but would later go on to write what became a standard textbook on structural engineering, and would ultimately be forced to complete his calculations on the bridge by working without pay for five months.
It's about six times as long as a London bus.
In other words, 27 fathoms is 5.890 times the length of a London bus, and the length of a London bus is 0.170 times that amount.(Routemaster Double-Decker, RM standard specification)
The Routemaster Double-Decker buses, well-known as icons of London, measure 4.580 fathoms in length. The buses were said to be well-designed for travel in the London traffic, as they offered an open door for riders to board and exit even while the bus was moving at low speeds, and a full-time conductor to collect fares.