It's about one-four-hundredth as long as The Circumfrence of Earth.
In other words, 630,000 shaftments is 0.002395807 times the length of The Circumfrence of Earth, and the length of The Circumfrence of Earth is 417.395890 times that amount.(Equatorial)
The Earth — not a perfect sphere, but rather an oblate spheroid with bulged middle — has an Equatorial circumference of approximately 262,959,410 shaftments. The first airplane trip around the circumference of the Earth (with a few stops along the way), was completed in 1924 by the United States Army Air Service, and took 175 days.
It's about 400 times as tall as The Golden Gate Bridge.
In other words, 630,000 shaftments is 423 times the height of The Golden Gate Bridge, and the height of The Golden Gate Bridge is 0.00236 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 500 times as tall as The Space Needle.
In other words, 630,000 shaftments is 522 times the height of The Space Needle, and the height of The Space Needle is 0.00192 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 550 times as tall as St. Paul's Cathedral.
In other words, 630,000 shaftments is 552 times the height of St. Paul's Cathedral, and the height of St. Paul's Cathedral is 0.00181 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 550 times as tall as The Washington Monument.
In other words, 630,000 shaftments is 567.150 times the height of The Washington Monument, and the height of The Washington Monument is 0.0017632 times that amount.(Washington, D.C.)
The Washington Monument measures 1,110.80 shaftments 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 600 times as tall as The Singapore Flyer (Ferris wheel).
In other words, 630,000 shaftments is 582 times the height of The Singapore Flyer (Ferris wheel), and the height of The Singapore Flyer (Ferris wheel) is 0.00172 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 1,080 shaftments. 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 600 times as long as The Seventeenth hole of Pebble Beach.
In other words, 630,000 shaftments is 593 times the length of The Seventeenth hole of Pebble Beach, and the length of The Seventeenth hole of Pebble Beach is 0.00169 times that amount.(fully Pebble Beach Golf Links) (Pebble Beach; Monterey, California) (from Blue Tee)
The seventeenth hole on Pebble Beach Golf Links is a par 3 measuring 1,060 shaftments from the blue tee. This hole was the site of professional golfer Jack Nicklaus' 1972 U.S. Open win, which included a 1-iron shot that bounced off the hole's flag and resulted in a birdie.