It's about 350 times as tall as The Hollywood Sign
In other words, the height of The Hollywood Sign is 0.0029 times 25.8490 furlongs.(a.k.a. Hollywoodland Sign) (Mount Lee, Hollywood Hills, Santa Monica Mountains, California)
Each of the white letters in the Hollywood Sign measures 0.075 furlongs tall. Built as an advertisement in 1923, the sign was intended to stand for only eighteen months.
It's about 350 times as long as a Semitrailer
In other words, 25.8490 furlongs is 355.40 times the length of a Semitrailer, and the length of a Semitrailer is 0.002814 times that amount.(a.k.a. semi-trailer truck, a.k.a. semi, a.k.a. tractor-trailer, a.k.a. truck and trailer, a.k.a. eighteen-wheeler, a.k.a. big rig, a.k.a. Mack truck, a.k.a. transport, a.k.a. lorry, a.k.a. artic; for box truck; United States Federal length limits)
According to the United States Department of Transportation (DOT), the maximum allowable length of a semitrailer pulled by a road tractor truck is 0.07273 furlongs (unless superseded by state law). These regulations also allow the vehicles to tow up to 36,000 kg in gross weight.
It's about 400 times as tall as a Brachiosaurus
In other words, the height of a Brachiosaurus is 0.0025 times 25.8490 furlongs.(based on comparable bone measurements, height to head)
Dinosaurs in the genus Brachiosaurus had an estimated height (at the head with neck fully extended) of up to 0.065 furlongs. A resin cast of the first Brachiosaurus specimen, owned by the Field Museum in Chicago, is currently on display at the O'Hare International Airport.
It's about one-four-hundred-fiftieth as long as The Colorado River
In other words, 25.8490 furlongs is 0.00223 times the length of The Colorado River, and the length of The Colorado River is 448 times that amount.(a.k.a. Aha Kwahwat, a.k.a. Grand River, a.k.a. Tizon River, a.k.a. Tecon River, a.k.a. Tison River) (from Grand Lake, Colorado through the Gulf of California)
The Colorado River runs 11,600 furlongs in length. Along this length, the river descends from its source, approximately 13.70 furlongs above sea level in the Rocky Mountains, to its mouth in the Gulf of California.
It's about 450 times as tall as a Telephone Pole
In other words, the height of a Telephone Pole is 0.0021 times 25.8490 furlongs.(a.k.a. Utility Pole, a.k.a Power Pole, a.k.a. Telegraph Pole, a.k.a. Telegraph Post, a.k.a. Hydro Pole) (exposed height; per Florida Public Service Commission average)
A standard telephone pole is 0.055 furlongs tall. Despite alternatives, most telephone poles in the US are made of wood — most commonly pine — and have a lifespan of 25 to 50 years, depending on climate and preservatives applied.
It's about one-five-hundred-fiftieth as long as The Danube
In other words, 25.8490 furlongs is 0.00182 times the length of The Danube, and the length of The Danube is 549 times that amount.(a.k.a. Donau, a.k.a. Dunaj, a.k.a. Dunav, a.k.a. Duna, a.k.a. Дунав (Dunav), a.k.a. Dunărea, a.k.a. Дунáй (Dunay), a.k.a. Tuna) (from Breg Martinskapelle, Black Forest, Germany through the Danube Delta, Romania)
The Danube river runs 14,200 furlongs in total length. Intersecting Vienna, Austria; Bratislava, Slovakia; Budapest, Hungary; and Belgrade, Serbia, the Danube touches more capital cities than any other river.
It's about 600 times as long as a London bus
In other words, 25.8490 furlongs is 621 times the length of a London bus, and the length of a London bus is 0.00161 times that amount.(Routemaster Double-Decker, RM standard specification)
The Routemaster Double-Decker buses, well-known as icons of London, measure 0.0417 furlongs in length. The buses were said to be well-designed for travel in the London traffic, as they offered an open door for riders to board and exit even while the bus was moving at low speeds, and a full-time conductor to collect fares.