It's about one-five-thousandth as tall as Olympus Mons
In other words, 556.90 centimeters is 0.00021 times the height of Olympus Mons, and the height of Olympus Mons is 4,800 times that amount.(a.k.a. Mount Olympus) (Mars)
The tallest mountain in the solar system, Olympus Mons rises to approximately 2,700,000 centimeters. 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 one-fifteen-thousandth as long as The Panama Canal
In other words, the length of The Panama Canal is 16,000 times 556.90 centimeters.(Canal de Panamá) (Panama)
Connecting the Atlantic and Pacific Oceans across the Isthmus of Panama, the Canal measures 8,800,000 centimeters in length. Ships passing through the Canal are raised (and then lowered) 2,600 centimeters above sea level through the lock-and-dam system.
It's about one-twenty-thousandth as long as The English Channel
In other words, the length of The English Channel is 19,200 times 556.90 centimeters.(average width between Isle of Ushant and The Walde Lighthouse) (La Manche, Ärmelkanal, Mor Breizh, Mor Bretannek) (a.k.a. The Channel)
The English Channel measures between 10,700,000 centimeters, narrowing as it flows northeast. The world speed record for a Channel crossing by swimmer was set by Australian Trent Grimsey in 2012, with a time of 6 hours, 55 minutes.
It's about one-twenty-thousandth as long as The 405
In other words, 556.90 centimeters is 0.0000477860 times the length of The 405, and the length of The 405 is 20,927 times that amount.(a.k.a. I-405, Interstate 405, San DIego Freeway) (Southern California)
Running from Irvine to San Fernando, The 405 runs a total of 11,654,000 centimeters. The 405 is the most heavily-trafficed freeway in the United States, with an average speed as low as 8 kph during rush hours.
It's about one-twenty-thousandth as long as Hadrian's Wall
In other words, the length of Hadrian's Wall is 22,000 times 556.90 centimeters.(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 12,000,000 centimeters (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 55,000 times as long as a Strand of Hair
It's about 55,000 times as tall as a Human hair, Strand of