It's about one-one-thousand-five-hundredth as tall as The Eiffel Tower.
In other words, the height of The Eiffel Tower is 1,410 times 23 centimeters.(a.k.a. La Tour Eiffel) (Paris, France) (to flagpole peak)
The Eiffel Tower stands 32,400 centimeters 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 3,700 centimeters or less.
It's about one-one-thousand-five-hundredth as long as The QE2.
In other words, 23 centimeters is 0.000782 times the length of The QE2, and the length of The QE2 is 1,280 times that amount.(a.k.a. RMS Queen Elizabeth 2) The QE2 has a total length of 29,400 centimeters. During its voyaging lifetime from 1969 through 2008, it travelled more than 960,000,000,000 centimeters, the furthest cumulative distance by any ship in modern history.
It's about one-one-thousandth as tall as The Golden Gate Bridge.
In other words, 23 centimeters is 0.00101 times the height of The Golden Gate Bridge, and the height of The Golden Gate Bridge is 990 times that amount.(San Francisco, California and Marin County, California) (height above water)
The height of each tower of Golden Gate Bridge is 22,700 centimeters 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-eight-hundredth as tall as The Space Needle.
In other words, 23 centimeters is 0.00125 times the height of The Space Needle, and the height of The Space Needle is 800 times that amount.(Seattle, Washington) (to aircraft warning beacon at peak)
Built for a 1962 World's Fair, the Space Needle stands 18,400 centimeters 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 one-seven-hundred-fiftieth as tall as St. Paul's Cathedral.
In other words, 23 centimeters is 0.00132 times the height of St. Paul's Cathedral, and the height of St. Paul's Cathedral is 758 times that amount.(London, England, United Kingdom)
St. Paul's Cathedral measures 17,400 centimeters 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-seven-hundred-fiftieth as tall as The Washington Monument.
In other words, 23 centimeters is 0.0013586 times the height of The Washington Monument, and the height of The Washington Monument is 736.05 times that amount.(Washington, D.C.)
The Washington Monument measures 16,929 centimeters 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 one-seven-hundredth as tall as The Singapore Flyer (Ferris wheel).
In other words, 23 centimeters is 0.00139 times the height of The Singapore Flyer (Ferris wheel), and the height of The Singapore Flyer (Ferris wheel) is 719 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 16,500 centimeters. Based on recommendations from Feng Shui masters, the wheel was re-engineered to spin in the opposite direction five months after it began operating.