It's about one-tenth as long as Baseball base distances
In other words, 13 feet is 0.14444 times the length of Baseball base distances, and the length of Baseball base distances is 6.9233 times that amount.(MLB Official Baseball Rules specification)
According to MLB Official Baseball Rules, the distance between baseball diamond bases is 90 feet. 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 ten-and-a-half times as tall as a Bowling Pin
In other words, 13 feet is 10.4 times the height of a Bowling Pin, and the height of a Bowling Pin is 0.096 times that amount.(USBC specifications; tenpin)
According to the United States Bowling Congress specifications, a tenpin bowling pin should be within 0.0026 feet of 1.250 feet 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-tenth as long as Ha'Penny Bridge
In other words, 13 feet is 0.092 times the length of Ha'Penny Bridge, and the length of Ha'Penny Bridge is 10.8 times that amount.(a.k.a. Droichead na Leathphingine, a.k.a. Liffey Bridge, a.k.a. Droichead na Life, f.k.a. Wellington Bridge) (Quay of Bachelors Walk, Temple Bar Neighborhood, Dublin, Ireland)
The Ha'Penny Bridge, crossing the River Liffey in Dublin, measures 141 feet in total length. Over 30,000 pedestrians cross the breach each day.
It's about one-tenth as tall as The Chicago Water Tower
In other words, 13 feet is 0.085 times the height of The Chicago Water Tower, and the height of The Chicago Water Tower is 11.8 times that amount.(Chicago, Illinois)
The Chicago Water Tower is 154 feet 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-tenth as tall as The Arc de Triomphe
In other words, 13 feet is 0.08 times the height of The Arc de Triomphe, and the height of The Arc de Triomphe is 12 times that amount.(Paris, France)
The Arc de Triomphe stands 160 feet 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, 13 feet is 0.0767 times the height of Nelson's Column, and the height of Nelson's Column is 13.0 times that amount.(London, England, United Kingdom) (from pedestal first step to tip of statue's hat)
Nelson's Column measures 169.40 feet 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 Mahabodhi Temple
In other words, 13 feet is 0.07 times the height of The Mahabodhi Temple, and the height of The Mahabodhi Temple is 14 times that amount.(a.k.a. Great Awakening Temple, a.k.a. Maha Bodhi Temple, a.k.a. Temple of Bodh Gaya, a.k.a. Mahabodhi Mahavihar) (Bodh Gaya, Gaya District, Bihar, India)
The tower of the Mahabodhi Temple measures 180 feet in total height. The site has been of sacred interest for more than 2,000 years, with the current Temple dating back at least 1,400 years.