It's about one-twentieth as long as Hadrian's Wall.
In other words, the length of Hadrian's Wall is 21 times 5,642,000,000 microns.(a.k.a. Roman Wall, a.k.a. The Wall, a.k.a. Vallo di Adriano, a.k.a. Vallum Aelium, a.k.a. Severus' Wall) (from North Tyneside, Tyne and Wear, England, United Kingdom to Cumbria, North West England, United Kingdom)
Hadrian's Wall, which crossed England form the North Sea to the Irish Sea during the time of Roman rule, measures 120,000,000,000 microns (about 79 Roman miles). Roman soldiers — at one time up to 10,000 of them — only occupied Great Britain for about 246 years after the wall was built, after which time the local Brits began to take residence the wall's garrisons.
It's about twenty times as tall as The Golden Gate Bridge.
In other words, 5,642,000,000 microns is 24.90 times the height of The Golden Gate Bridge, and the height of The Golden Gate Bridge is 0.0402 times that amount.(San Francisco, California and Marin County, California) (height above water)
The height of each tower of Golden Gate Bridge is 227,000,000 microns 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 thirty times as tall as The Space Needle.
In other words, 5,642,000,000 microns is 30.70 times the height of The Space Needle, and the height of The Space Needle is 0.0326 times that amount.(Seattle, Washington) (to aircraft warning beacon at peak)
Built for a 1962 World's Fair, the Space Needle stands 184,000,000 microns 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 thirty times as tall as St. Paul's Cathedral.
In other words, 5,642,000,000 microns is 32.40 times the height of St. Paul's Cathedral, and the height of St. Paul's Cathedral is 0.0309 times that amount.(London, England, United Kingdom)
St. Paul's Cathedral measures 174,000,000 microns 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 thirty times as tall as The Washington Monument.
In other words, 5,642,000,000 microns is 33.3270 times the height of The Washington Monument, and the height of The Washington Monument is 0.030006 times that amount.(Washington, D.C.)
The Washington Monument measures 169,290,000 microns 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 thirty times as tall as The Singapore Flyer (Ferris wheel).
In other words, 5,642,000,000 microns is 34.20 times the height of The Singapore Flyer (Ferris wheel), and the height of The Singapore Flyer (Ferris wheel) is 0.0292 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 165,000,000 microns. 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 thirty times as long as The Seventeenth hole of Pebble Beach.
In other words, 5,642,000,000 microns is 34.80 times the length of The Seventeenth hole of Pebble Beach, and the length of The Seventeenth hole of Pebble Beach is 0.0287 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 162,000,000 microns 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.