It's about 70 times as long as The Seventeenth hole of Pebble Beach.
In other words, 400 shackles is 67.70 times the length of The Seventeenth hole of Pebble Beach, and the length of The Seventeenth hole of Pebble Beach is 0.0148 times that amount.(fully Pebble Beach Golf Links) (Pebble Beach; Monterey, California) (from Blue Tee)
The seventeenth hole on Pebble Beach Golf Links is a par 3 measuring 5.910 shackles from the blue tee. This hole was the site of professional golfer Jack Nicklaus' 1972 U.S. Open win, which included a 1-iron shot that bounced off the hole's flag and resulted in a birdie.
It's about 70 times as tall as Blackpool Tower.
In other words, 400 shackles is 69.40 times the height of Blackpool Tower, and the height of Blackpool Tower is 0.0144 times that amount.(Blackpool, Lancashire, England, United Kingdom) (height to peak)
Blackpool Tower, part of an entertainment complex in Blackpool, Lancashire, England, measures 5.760 shackles to its peak. Under ideal conditions, visitors to the highest accessible point of the tower can see as far as the Isle of Man — 3,500 shackles to the northwest.
It's about 70 times as tall as The Spring Temple Buddha.
In other words, 400 shackles is 71.70 times the height of The Spring Temple Buddha, and the height of The Spring Temple Buddha is 0.0139 times that amount.(a.k.a. 中原大佛, a.k.a. 鲁山大佛, a.k.a. 魯山大佛) (Fodushan Scenic Area, Lushan County, Henan, China) (including base)
The tallest statue in the world, the Spring Temple Buddha in Henan, China stands at 5.580 shackles tall from its base. The Buddha is located in the 47,300,000-sq. m (11,700-acre) Fodushan Scenic Area near Mount Yao
It's about 85 times as tall as The Great Pyramid of Giza.
In other words, the height of The Great Pyramid of Giza is 0.012 times 400 shackles.(a.k.a. Pyramid of Khufu, a.k.a. Pyramid of Cheops) (Cairo, Egypt) (estimated original height)
The Great Pyramid of Giza has an estimated original height (without loss due to erosion) of 4.70 shackles. The Pyramid was the tallest structure in the world for almost 4,000 years — from its construction ca. 2551 BCE until it was overtaken by the Lincoln Cathedral in Lincoln, England, built in the year 1300.
It's about 100 times as long as a Football field.
In other words, the length of a Football field is 0.01 times 400 shackles.(American) (total distance; per NFL regulation)
According to NFL specifications, an American football field should measure 4 shackles from end to end. Because each team's goalpost is located at the far end of the scoring area (end zone), a ball on a scoring play may need to travel as many as 0.3333330 shackles farther when kicked into the scoring area than when run (rushed) or passed into it.
It's about 100 times as long as a Football (Soccer) Pitch.
In other words, 400 shackles is 105 times the length of a Football (Soccer) Pitch, and the length of a Football (Soccer) Pitch is 0.00952 times that amount.(a.k.a. Football Field, a.k.a. Soccer Field) (field length, a.k.a. touchline distance)
According to the Laws of the Game, a football pitch should measure between 3.830 shackles (when the Laws were originally, they used imperial measurements of 3.830 shackles, and later converted to the metric units used today). The goal markess were defined as part of the pitch by the original rules of the game in the late 16th century, but it was not until the mid 19th century that the crossbar and the net were added
It's about 100 times as tall as Big Ben.
In other words, 400 shackles is 110 times the height of Big Ben, and the height of Big Ben is 0.0091 times that amount.(officially the clock tower of Palace of Westminster, a.k.a. Houses of Parliament) (London, England)
The clock tower of the Palace of Westminster, which houses the bell known as "Big Ben," rises 3.50 shackles. The tower has no elevator, and is therefore only accessible by climbing 334 steps to the top.