It's about 500,000 times as tall as The Chicago Water Tower.
In other words, 15,000 miles is 515,000 times the height of The Chicago Water Tower, and the height of The Chicago Water Tower is 0.000001940 times that amount.(Chicago, Illinois)
The Chicago Water Tower is 0.0291 miles 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 900,000 times as long as Baseball base distances.
In other words, 15,000 miles is 880,000 times the length of Baseball base distances, and the length of Baseball base distances is 0.00000113640 times that amount.(MLB Official Baseball Rules specification)
According to MLB Official Baseball Rules, the distance between baseball diamond bases is 0.017045 miles. 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 1,000,000 times as long as a Cricket Pitch.
In other words, 15,000 miles is 1,200,000 times the length of a Cricket Pitch, and the length of a Cricket Pitch is 0.0000008333330 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 0.0125 miles. The wickets at either end of the pitch stand 0.000447387 miles tall including the bails.
It's about 1,500,000 times as long as a Bowling Lane.
In other words, 15,000 miles is 1,260,200 times the length of a Bowling Lane, and the length of a Bowling Lane is 0.000000793520 times that amount.(USBC specifications; tenpin; including pin deck)
According to the United States Bowling Congress specifications, a tenpin bowling lane should measure 0.011903 miles. In a Professional Bowling Association game, the lane must be lubricated by about 25 ml (0.85 fl. oz) of oil.
It's about 1,500,000 times as tall as The Hollywood Sign.
In other words, the height of The Hollywood Sign is 0.000000630 times 15,000 miles.(a.k.a. Hollywoodland Sign) (Mount Lee, Hollywood Hills, Santa Monica Mountains, California)
Each of the white letters in the Hollywood Sign measures 0.0093 miles tall. Built as an advertisement in 1923, the sign was intended to stand for only eighteen months.
It's about 1,500,000 times as long as a Semitrailer.
In other words, 15,000 miles is 1,650,000 times the length of a Semitrailer, and the length of a Semitrailer is 0.00000060610 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 0.009091 miles (unless superseded by state law). These regulations also allow the vehicles to tow up to 36,000 kg in gross weight.
It's about 2,000,000 times as tall as a Brachiosaurus.
In other words, 15,000 miles is 1,900,000 times the height of a Brachiosaurus, and the height of a Brachiosaurus is 0.000000530 times that amount.(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 0.0081 miles. 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.