It's about three-fifths as tall as St. Paul's Cathedral.
In other words, 630 shaftments is 0.5520 times the height of St. Paul's Cathedral, and the height of St. Paul's Cathedral is 1.810 times that amount.(London, England, United Kingdom)
St. Paul's Cathedral measures 1,140 shaftments 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-and-nine-tenths times as tall as Nelson's Column.
In other words, 630 shaftments is 1.8590 times the height of Nelson's Column, and the height of Nelson's Column is 0.53790 times that amount.(London, England, United Kingdom) (from pedestal first step to tip of statue's hat)
Nelson's Column measures 338.80 shaftments from the first step of the pedestal's base to the top of the statue's hat. While the London tower is the tallest, there are at least eight other monuments to Admiral Horatio Nelson, 1st Viscount Nelson, 1st Duke of Bronté throughout England, Scotland, Ireland, Canada, and Barbados.
It's about half as tall as The Space Needle.
In other words, 630 shaftments is 0.5220 times the height of The Space Needle, and the height of The Space Needle is 1.920 times that amount.(Seattle, Washington) (to aircraft warning beacon at peak)
Built for a 1962 World's Fair, the Space Needle stands 1,210 shaftments 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 two times as tall as The Arc de Triomphe.
In other words, the height of The Arc de Triomphe is 0.50 times 630 shaftments.(Paris, France)
The Arc de Triomphe stands 320 shaftments tall. France's Tomb of the Unknown Soldier from the First World War lies beneath the arch and is commemorated by the first eternal flame to have been lit in modern European history.
It's about two times as tall as The Chicago Water Tower.
In other words, 630 shaftments is 2.05 times the height of The Chicago Water Tower, and the height of The Chicago Water Tower is 0.4880 times that amount.(Chicago, Illinois)
The Chicago Water Tower is 308 shaftments tall. The tower's architecture was one source of inspiration behind the design of White Castle fast-food restaurants beginning with "Building Number 8," a prefabricated structure built in Minneapolis, Minnesota in 1936.
It's about two-fifths as tall as The Golden Gate Bridge.
In other words, 630 shaftments is 0.4230 times the height of The Golden Gate Bridge, and the height of The Golden Gate Bridge is 2.360 times that amount.(San Francisco, California and Marin County, California) (height above water)
The height of each tower of Golden Gate Bridge is 1,490 shaftments 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-third as long as The QE2.
In other words, 630 shaftments is 0.3270 times the length of The QE2, and the length of The QE2 is 3.06 times that amount.(a.k.a. RMS Queen Elizabeth 2) The QE2 has a total length of 1,930 shaftments. During its voyaging lifetime from 1969 through 2008, it travelled more than 63,000,000,000 shaftments, the furthest cumulative distance by any ship in modern history.