It's about one-three-hundred-fiftieth as long as The Amazon River.
In other words, 257.790 leas is 0.00293 times the length of The Amazon River, and the length of The Amazon River is 341.30 times that amount.(from Nevado Mismi, Arequipa, Peru through near Marajó, Brazil) (approximate distance)
The Amazon River has an approximate distance of 87,990 leas. Although by most measures it is the largest and one of the most significant rivers in the world, the region surrounding the Amazon is mostly sparsely populated and the river itself has no bridges across it at any point.
It's about 350 times as tall as Nelson's Column.
In other words, 257.790 leas is 365.20 times the height of Nelson's Column, and the height of Nelson's Column is 0.002738 times that amount.(London, England, United Kingdom) (from pedestal first step to tip of statue's hat)
Nelson's Column measures 0.70590 leas from the first step of the pedestal's base to the top of the statue's hat. While the London tower is the tallest, there are at least eight other monuments to Admiral Horatio Nelson, 1st Viscount Nelson, 1st Duke of Bronté throughout England, Scotland, Ireland, Canada, and Barbados.
It's about 400 times as tall as The Arc de Triomphe.
In other words, 257.790 leas is 380 times the height of The Arc de Triomphe, and the height of The Arc de Triomphe is 0.0026 times that amount.(Paris, France)
The Arc de Triomphe stands 0.670 leas tall. France's Tomb of the Unknown Soldier from the First World War lies beneath the arch and is commemorated by the first eternal flame to have been lit in modern European history.
It's about 400 times as tall as The Chicago Water Tower.
In other words, 257.790 leas is 402 times the height of The Chicago Water Tower, and the height of The Chicago Water Tower is 0.00249 times that amount.(Chicago, Illinois)
The Chicago Water Tower is 0.6410 leas tall. The tower's architecture was one source of inspiration behind the design of White Castle fast-food restaurants beginning with "Building Number 8," a prefabricated structure built in Minneapolis, Minnesota in 1936.
It's about one-four-hundred-fiftieth as long as The Great Wall of China (total).
In other words, 257.790 leas is 0.00213 times the length of The Great Wall of China (total), and the length of The Great Wall of China (total) is 469 times that amount.(长城, 長城, Chángchéng, a.k.a. 万里长城, 萬里長城, Wànlǐ Chángchéng) (a.k.a. "The long wall of 10,000 Li") (from Shanhaiguan through Lop Nur, China) (total length, all branches)
The Great Wall of China, including all branches and trenches, is 121,000 leas. Built and maintained in multiple sections over about eleven centuries, the Great Wall is currently suffering the effects of erosion, especially in the older sections made primarily out of mud.
It's about 700 times as long as Baseball base distances.
In other words, 257.790 leas is 687.440 times the length of Baseball base distances, and the length of Baseball base distances is 0.0014547 times that amount.(MLB Official Baseball Rules specification)
According to MLB Official Baseball Rules, the distance between baseball diamond bases is 0.3750 leas. While second and home base are located upon the corners of the 27.432 sq. m area created by the bases, first and third base are placed within that square, to better allow the umpires to judge whether a ball is fair or foul.
It's about 950 times as long as a Cricket Pitch.
In other words, 257.790 leas is 937.4180 times the length of a Cricket Pitch, and the length of a Cricket Pitch is 0.00106676 times that amount.(per Marylebone Cricket Council / International Cricket Council Law #6)
The length of a cricket pitch, from one bowling crease to the other, is 0.2750 leas. The wickets at either end of the pitch stand 0.00984252 leas tall including the bails.