It's about as tall as The Statue of Liberty.
In other words, the height of The Statue of Liberty is 1.007 times 404 spans.(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 406.8 spans 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.
It's about as tall as Big Ben.
In other words, the height of Big Ben is 1 times 404 spans.(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 420 spans. The tower has no elevator, and is therefore only accessible by climbing 334 steps to the top.
It's about nine-tenths as long as a Football (Soccer) Pitch.
In other words, 404 spans is 0.88 times the length of a Football (Soccer) Pitch, and the length of a Football (Soccer) Pitch is 1.14 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 459 spans (when the Laws were originally, they used imperial measurements of 460 spans, 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 long as a Football field.
In other words, 404 spans is 0.841667 times the length of a Football field, and the length of a Football field is 1.18812 times that amount.(American) (total distance; per NFL regulation)
According to NFL specifications, an American football field should measure 480 spans 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 40 spans farther when kicked into the scoring area than when run (rushed) or passed into it.
It's about one-and-one-fifth times as tall as a Giant Sequoia (tree).
In other words, the height of a Giant Sequoia (tree) is 0.83 times 404 spans.(a.k.a. Sequoiadendron giganteum, a.k.a. Sierra redwood, a.k.a. Wellingtonia)
Giant Sequoias of the Giant Sequoia National Monument located in Sierra Nevada, near Visalia, California can grow to heights of 330 spans. The wood from the Giant Sequoias is often brittle and prone to shattering when such trees are felled, and as a result the trees logged in the late nineteenth century were often usable only as shingles or matchsticks.
It's about four-fifths as tall as St. Paul's Cathedral.
In other words, 404 spans is 0.8298 times the height of St. Paul's Cathedral, and the height of St. Paul's Cathedral is 1.205 times that amount.(London, England, United Kingdom)
St. Paul's Cathedral measures 486.9 spans to its peak. The southwest tower of the Cathedral contains the bell known as "Great Paul," which is the largest bell in Great Britain at 15,000 kg (16.5 tons), outweighing the more iconic Big Ben bell by about 3,000 kg (3 tons).
It's about one-and-one-third times as long as The Wingspan of a 747.