
It's about oneandonetenth times as tall as The Cinderella Castle.
In other words, 31.8 fathoms is 1.01 times the height of The Cinderella Castle, and the height of The Cinderella Castle is 0.99 times that amount.
(Fantasyland, Magic Kingdom, Walt Disney World, Lake Buena Vista and Bay Lake, Florida)
It's about oneandonetenth times as tall as The Leaning Tower of Pisa.
In other words, 31.8 fathoms is 1.03 times the height of The Leaning Tower of Pisa, and the height of The Leaning Tower of Pisa is 0.971 times that amount.
(a.k.a. The Tower of Pisa, a.k.a. Torre pendente di Pisa) (Pisa, Italy) (height along center axis)
It's about oneandonetenth times as tall as Nelson's Column.
In other words, 31.8 fathoms is 1.126 times the height of Nelson's Column, and the height of Nelson's Column is 0.8881 times that amount.
(London, England, United Kingdom) (from pedestal first step to tip of statue's hat)
It's about fourfifths as long as The Wingspan of a 747.
In other words, 31.8 fathoms is 0.849 times the length of The Wingspan of a 747, and the length of The Wingspan of a 747 is 1.18 times that amount.
(a.k.a. Boeing 747, a.k.a. Jumbo Jet, a.k.a. Queen of the Skies) (for Boeing 7478 series)
It's about oneandonefifth times as tall as The Arc de Triomphe.
In other words, the height of The Arc de Triomphe is 0.83 times 31.8 fathoms.
(Paris, France)The Arc de Triomphe stands 27 fathoms 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 oneandonefourth times as tall as The Chicago Water Tower.
In other words, 31.8 fathoms is 1.24 times the height of The Chicago Water Tower, and the height of The Chicago Water Tower is 0.806 times that amount.
(Chicago, Illinois)
It's about threefourths as tall as a Giant Sequoia (tree).
In other words, the height of a Giant Sequoia (tree) is 1.3 times 31.8 fathoms.
(a.k.a. Sequoiadendron giganteum, a.k.a. Sierra redwood, a.k.a. Wellingtonia) 
