It's about one-fifteenth as long as The Panama Canal
In other words, the length of The Panama Canal is 14 times 6.2590 kilometers.(Canal de Panamá) (Panama)
Connecting the Atlantic and Pacific Oceans across the Isthmus of Panama, the Canal measures 88 kilometers in length. Ships passing through the Canal are raised (and then lowered) 0.026 kilometers above sea level through the lock-and-dam system.
It's about sixteen-and-a-half times as tall as The Empire State Building
In other words, 6.2590 kilometers is 16.4270 times the height of The Empire State Building, and the height of The Empire State Building is 0.060875 times that amount.(New York City, New York) (to top of building)
The Empire State Building stands 0.381010 kilometers to its architectural peak. The spire emerging from the top of the building was originally intended to be a mooring mast for blimps whose passengers could disembark onto a landing platform on the 102
It's about one-fifteenth as long as The English Channel
In other words, the length of The English Channel is 17.10 times 6.2590 kilometers.(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 180 km to 34 km, 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-twentieth as long as The 405
In other words, 6.2590 kilometers is 0.053707 times the length of The 405, and the length of The 405 is 18.620 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 116.541 km. 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-twentieth as long as Hadrian's Wall
In other words, the length of Hadrian's Wall is 19 times 6.2590 kilometers.(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 km (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 nineteen-and-a-half times as tall as The Eiffel Tower
In other words, the height of The Eiffel Tower is 0.0518 times 6.2590 kilometers.(a.k.a. La Tour Eiffel) (Paris, France) (to flagpole peak)
The Eiffel Tower stands 0.3240 kilometers 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 0.037 kilometers or less.
It's about twenty times as long as The QE2
In other words, 6.2590 kilometers is 21.30 times the length of The QE2, and the length of The QE2 is 0.0469 times that amount.(a.k.a. RMS Queen Elizabeth 2)
The QE2 has a total length of 0.2940 kilometers. During its voyaging lifetime from 1969 through 2008, it travelled more than 9.6 million km, the furthest cumulative distance by any ship in modern history.