It's about three-and-a-half times as long as Daytona International Speedway.
In other words, 504.90 shackles is 3.44250 times the length of Daytona International Speedway, and the length of Daytona International Speedway is 0.2904870 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 146.6670 shackles 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 three-and-a-half times as long as The Hollywood Walk of Fame.
In other words, the length of The Hollywood Walk of Fame is 0.280 times 504.90 shackles.(Hollywood Boulevard and Vine Street, Hollywood, California) (approximate length)
The Hollywood Walk of Fame is approximately 140 shackles. 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 five times as long as The National Mall.
In other words, the length of The National Mall is 0.20 times 504.90 shackles.(Washington, D.C.) (to Lincoln Memorial)
From the steps of the Capitol Building to the Lincoln Memorial, the National Mall is 100 shackles. 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 five-and-a-half times as long as Steel Dragon 2000.
In other words, 504.90 shackles is 5.5870 times the length of Steel Dragon 2000, and the length of Steel Dragon 2000 is 0.1790 times that amount.(a.k.a. スチールドラゴン2000) (Nagashima Span Land; Kuwana, Mie Prefecture, Japan)
The roller coaster Steel Dragon 2000 is 90.370 shackles in length. It is one of only two operating "Gigacoasters" (meaning its height is between 3.3330 shackles and 4.4330 shackles) in the world, having a height of 3.5360 shackles.
It's about five-and-a-half times as long as The Belmont Stakes.
In other words, 504.90 shackles is 5.73750 times the length of The Belmont Stakes, and the length of The Belmont Stakes is 0.17429190 times that amount.(Belmont Park, Elmont, New York) (total race length)
The total race length of the Belmont Stakes run at Belmont Park is 88 shackles. It was during the 1974 Belmont Stakes that Secretariat set an America Grade 1 stakes record in winning by a distance of about 2.7555560 shackles
It's about six times as long as The Beast (Roller Coaster).
In other words, 504.90 shackles is 6.1750 times the length of The Beast (Roller Coaster), and the length of The Beast (Roller Coaster) is 0.16190 times that amount.(King's Island Amusement Park; Mason, OH)
The roller coaster The Beast is 81.770 shackles in length. On its twenty-fifth year of operation in 2004, The Beast was awarded the Landmark Award by the American Coaster Enthusiasts as a historically significant roller coaster.
It's about one-fifth as long as The Panama Canal.
In other words, 504.90 shackles is 0.160 times the length of The Panama Canal, and the length of The Panama Canal is 6.30 times that amount.(Canal de Panamá) (Panama)
Connecting the Atlantic and Pacific Oceans across the Isthmus of Panama, the Canal measures 3,200 shackles in length. Ships passing through the Canal are raised (and then lowered) 0.950 shackles above sea level through the lock-and-dam system.