It's about as long as The Belmont Stakes
It's about as long as Steel Dragon 2000
In other words, 12 furlongs is 0.9738 times the length of Steel Dragon 2000, and the length of Steel Dragon 2000 is 1.03 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 12.320 furlongs in length. It is one of only two operating "Gigacoasters" (meaning its height is between 0.45450 furlongs and 0.60450 furlongs) in the world, having a height of 0.48220 furlongs.
It's about one-and-one-tenth times as long as The Beast (Roller Coaster)
In other words, 12 furlongs is 1.08 times the length of The Beast (Roller Coaster), and the length of The Beast (Roller Coaster) is 0.9294 times that amount.(King's Island Amusement Park; Mason, OH)
The roller coaster The Beast is 11.150 furlongs 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-and-one-fifth times as long as The Kentucky Derby
In other words, 12 furlongs is 1.2 times the length of The Kentucky Derby, and the length of The Kentucky Derby is 0.833333 times that amount.(Churchill Downs, Louisville, Kentucky) (total race length)
The total race length of the Kentucky Derby run at Churchill Downs is 10 furlongs. First run in 1864, the Kentucky Derby is one of the oldest continuously-running sporting events in America, almost two years older than the Westminster Kennel Club Dog Show
It's about four-fifths as long as The National Mall
In other words, 12 furlongs is 0.8 times the length of The National Mall, and the length of The National Mall is 1 times that amount.(Washington, D.C.) (to Lincoln Memorial)
From the steps of the Capitol Building to the Lincoln Memorial, the National Mall is 10 furlongs. 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-and-one-fourth times as long as The Preakness Stakes
In other words, 12 furlongs is 1.263158 times the length of The Preakness Stakes, and the length of The Preakness Stakes is 0.7916666 times that amount.(Pimlico Race Course, Baltimore, Maryland) (total race length)
The total race length of the Preakness Stakes run at the Pimlico Race Course is 9.5 furlongs. Dubbed "the race for the Black-eyed Susans" after Maryland's state flower, the winning horse is actually draped with a garland of painted yellow daisies, as Black-eyed Susans do not bloom in time for the late-May race.
It's about three-fifths as long as The Hollywood Walk of Fame
In other words, 12 furlongs is 0.62 times the length of The Hollywood Walk of Fame, and the length of The Hollywood Walk of Fame is 1.6 times that amount.(Hollywood Boulevard and Vine Street, Hollywood, California) (approximate length)
The Hollywood Walk of Fame is approximately 19 furlongs. 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.