It's about six-and-a-half times as tall as The Empire State Building.
In other words, 12 furlongs is 6.33580 times the height of The Empire State Building, and the height of The Empire State Building is 0.157830 times that amount.(New York City, New York) (to top of building)
The Empire State Building stands 1.8940 furlongs 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 seven-and-a-half times as tall as The Eiffel Tower.
In other words, 12 furlongs is 7.450 times the height of The Eiffel Tower, and the height of The Eiffel Tower is 0.1340 times that amount.(a.k.a. La Tour Eiffel) (Paris, France) (to flagpole peak)
The Eiffel Tower stands 1.610 furlongs 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 0.1840 furlongs or less.
It's about eight times as long as The QE2.
In other words, 12 furlongs is 8.210 times the length of The QE2, and the length of The QE2 is 0.1220 times that amount.(a.k.a. RMS Queen Elizabeth 2) The QE2 has a total length of 1.460 furlongs. During its voyaging lifetime from 1969 through 2008, it travelled more than 47,700,000 furlongs, the furthest cumulative distance by any ship in modern history.
It's about ten-and-a-half times as tall as The Golden Gate Bridge.
In other words, the height of The Golden Gate Bridge is 0.0943 times 12 furlongs.(San Francisco, California and Marin County, California) (height above water)
The height of each tower of Golden Gate Bridge is 1.130 furlongs 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 one-tenth as tall as Olympus Mons.
In other words, the height of Olympus Mons is 11 times 12 furlongs.(a.k.a. Mount Olympus) (Mars)
The tallest mountain in the solar system, Olympus Mons rises to approximately 130 furlongs. The mountain has been known to astronomers since the nineteenth century because it is tall enough to rise above Mars' frequent dust storms.
It's about thirteen times as tall as The Space Needle.
In other words, 12 furlongs is 13.10 times the height of The Space Needle, and the height of The Space Needle is 0.0763 times that amount.(Seattle, Washington) (to aircraft warning beacon at peak)
Built for a 1962 World's Fair, the Space Needle stands 0.9150 furlongs 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 fourteen times as tall as St. Paul's Cathedral.
In other words, 12 furlongs is 13.90 times the height of St. Paul's Cathedral, and the height of St. Paul's Cathedral is 0.0719 times that amount.(London, England, United Kingdom)
St. Paul's Cathedral measures 0.8650 furlongs 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).