It's about four-and-a-half times as long as Daytona International Speedway.
In other words, 257.790 leas is 4.687090 times the length of Daytona International Speedway, and the length of Daytona International Speedway is 0.2133520 times that amount.(Daytona Beach, Florida) (tri-oval course)
The tri-oval course of the Daytona International Speedway, upon which the NASCAR Daytona 500 is run, is 55 leas in length. Although the tri-oval design is said to allow for greater visibility during the race, the real reason for the then-unique design was that plot available for construction of the track was only 350 acres and could not accommodate a traditional oval layout of appropriate length.
It's about one-fifth as long as The Panama Canal.
In other words, 257.790 leas is 0.210 times the length of The Panama Canal, and the length of The Panama Canal is 4.80 times that amount.(Canal de Panamá) (Panama)
Connecting the Atlantic and Pacific Oceans across the Isthmus of Panama, the Canal measures 1,200 leas in length. Ships passing through the Canal are raised (and then lowered) 0.360 leas above sea level through the lock-and-dam system.
It's about five times as long as The Hollywood Walk of Fame.
In other words, 257.790 leas is 4.80 times the length of The Hollywood Walk of Fame, and the length of The Hollywood Walk of Fame is 0.210 times that amount.(Hollywood Boulevard and Vine Street, Hollywood, California) (approximate length)
The Hollywood Walk of Fame is approximately 53 leas. Gene Autry, most famous as the singer of "Back in the Saddle Again" and as the writer and singer of "Here Comes Santa Claus," is the only entertainer to have a star in every category — film, television, recording, radio, and theater. One of Autry's stars is also one of only two stars which have been stolen from the Walk and never recovered.
It's about one-fifth as long as The English Channel.
In other words, 257.790 leas is 0.1760 times the length of The English Channel, and the length of The English Channel is 5.680 times that amount.(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 1,460 leas, 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 six times as long as The National Mall.
In other words, the length of The National Mall is 0.20 times 257.790 leas.(Washington, D.C.) (to Lincoln Memorial)
From the steps of the Capitol Building to the Lincoln Memorial, the National Mall is 40 leas. On December 4th, 2008, the entirety of the Mall was declared open to the public for the first time in American history in anticipation of the estimated two million visitors to the Mall for the inauguration of President Barack Obama on January 20th, 2009.
It's about one-fifth as long as The 405.
In other words, 257.790 leas is 0.161810 times the length of The 405, and the length of The 405 is 6.18010 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 1,593.10 leas. 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-fifth as long as Hadrian's Wall.
In other words, 257.790 leas is 0.160 times the length of Hadrian's Wall, and the length of Hadrian's Wall is 6.30 times that amount.(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 1,600 leas (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.