It's about twenty times as tall as The Arc de Triomphe.
In other words, the height of The Arc de Triomphe is 0.045 times 0.6840 miles.(Paris, France)
The Arc de Triomphe stands 0.03 miles 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 twenty times as tall as The Chicago Water Tower.
In other words, 0.6840 miles is 23.50 times the height of The Chicago Water Tower, and the height of The Chicago Water Tower is 0.0426 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 one-twenty-fifth as tall as Olympus Mons.
In other words, the height of Olympus Mons is 24 times 0.6840 miles.(a.k.a. Mount Olympus) (Mars)
The tallest mountain in the solar system, Olympus Mons rises to approximately 17 miles. The mountain has been known to astronomers since the nineteenth century because it is tall enough to rise above Mars' frequent dust storms.
It's about 40 times as long as Baseball base distances.
In other words, 0.6840 miles is 40.1280 times the length of Baseball base distances, and the length of Baseball base distances is 0.02492 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 55 times as long as a Cricket Pitch.
In other words, 0.6840 miles is 54.720 times the length of a Cricket Pitch, and the length of a Cricket Pitch is 0.0182749 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 55 times as long as a Bowling Lane.
In other words, 0.6840 miles is 57.4650 times the length of a Bowling Lane, and the length of a Bowling Lane is 0.017402 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 75 times as tall as The Hollywood Sign.
In other words, the height of The Hollywood Sign is 0.014 times 0.6840 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.