It's about nine-tenths as tall as The Great Pyramid of Giza.
In other words, 66.50 fathoms is 0.940 times the height of The Great Pyramid of Giza, and the height of The Great Pyramid of Giza is 1.10 times that amount.(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 71 fathoms. 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 one-and-one-tenth times as long as a Football field.
In other words, 66.50 fathoms is 1.108330 times the length of a Football field, and the length of a Football field is 0.9022580 times that amount.(American) (total distance; per NFL regulation)
According to NFL specifications, an American football field should measure 60 fathoms 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 5 fathoms farther when kicked into the scoring area than when run (rushed) or passed into it.
It's about one-and-one-fifth times as long as a Football (Soccer) Pitch.
In other words, 66.50 fathoms is 1.160 times the length of a Football (Soccer) Pitch, and the length of a Football (Soccer) Pitch is 0.8620 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 57.40 fathoms (when the Laws were originally, they used imperial measurements of 57.50 fathoms, 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 four-fifths as tall as The Spring Temple Buddha.
In other words, 66.50 fathoms is 0.7950 times the height of The Spring Temple Buddha, and the height of The Spring Temple Buddha is 1.260 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 83.70 fathoms 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 three-fourths as tall as Blackpool Tower.
In other words, the height of Blackpool Tower is 1.30 times 66.50 fathoms.(Blackpool, Lancashire, England, United Kingdom) (height to peak)
Blackpool Tower, part of an entertainment complex in Blackpool, Lancashire, England, measures 86.40 fathoms to its peak. Under ideal conditions, visitors to the highest accessible point of the tower can see as far as the Isle of Man — 52,500 fathoms to the northwest.
It's about one-and-three-tenths times as tall as Big Ben.
In other words, the height of Big Ben is 0.770 times 66.50 fathoms.(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 52 fathoms. The tower has no elevator, and is therefore only accessible by climbing 334 steps to the top.
It's about one-and-three-tenths times as tall as The Statue of Liberty.
In other words, 66.50 fathoms is 1.3080 times the height of The Statue of Liberty, and the height of The Statue of Liberty is 0.76450 times that amount.(a.k.a. "Liberty Enlightening the World," a.k.a. La Liberté Éclairant le Monde) (Liberty Island, New York City, New York) (pedestal base to torch peak)
The Statue of Liberty reaches 50.850 fathoms including the pedestal. The statue was designed using an optical trick known as "forced perspective" to make the statue appear proportionally correct when viewed from its base and is, in actuality, disproportionately large at the top.