It's about one-tenth as long as Baseball base distances.
In other words, 3.50 meters is 0.127590 times the length of Baseball base distances, and the length of Baseball base distances is 7.83760 times that amount.(MLB Official Baseball Rules specification)
According to MLB Official Baseball Rules, the distance between baseball diamond bases is 27.432 m. 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 nine times as tall as a Bowling Pin.
In other words, 3.50 meters is 9.190 times the height of a Bowling Pin, and the height of a Bowling Pin is 0.1090 times that amount.(USBC specifications; tenpin)
According to the United States Bowling Congress specifications, a tenpin bowling pin should be within 0.000794 meters of 0.3810 meters in height. The USBC further mandates that certified pins be made of sugar maple wood, unless otherwise approved by the organization.
It's about one-fifteenth as tall as The Chicago Water Tower.
In other words, the height of The Chicago Water Tower is 13.40 times 3.50 meters.(Chicago, Illinois)
The Chicago Water Tower is 46.9 m 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-fifteenth as tall as The Arc de Triomphe.
In other words, the height of The Arc de Triomphe is 14 times 3.50 meters.(Paris, France)
The Arc de Triomphe stands 49 m 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 one-fifteenth as tall as Nelson's Column.
In other words, 3.50 meters is 0.06778 times the height of Nelson's Column, and the height of Nelson's Column is 14.750 times that amount.(London, England, United Kingdom) (from pedestal first step to tip of statue's hat)
Nelson's Column measures 51.64 m from the first step of the pedestal's base to the top of the statue's hat. While the London tower is the tallest, there are at least eight other monuments to Admiral Horatio Nelson, 1st Viscount Nelson, 1st Duke of Bronté throughout England, Scotland, Ireland, Canada, and Barbados.
It's about one-fifteenth as tall as The Leaning Tower of Pisa.
In other words, the height of The Leaning Tower of Pisa is 16.10 times 3.50 meters.(a.k.a. The Tower of Pisa, a.k.a. Torre pendente di Pisa) (Pisa, Italy) (height along center axis)
The Leaning Tower of Pisa stands 56.4 m tall along the angle of its lean. In May of 2008, in an successful effort to stabilize the tower, 70 tonnes of earth were removed from the tower's base on the side opposite the lean.
It's about one-fifteenth as tall as The Cinderella Castle.
In other words, the height of The Cinderella Castle is 16.40 times 3.50 meters.(Fantasyland, Magic Kingdom, Walt Disney World, Lake Buena Vista and Bay Lake, Florida)
Walt Disney World's Cinderella Castle is 57.6 m tall. The castle's architecture uses the optical trick known as "forced perspective" — the castle gets smaller near the top — to appear larger than it truly is.