It's about one-and-one-tenth times as tall as a Canton Tower
In other words, 378 fathoms is 1.1 times the height of a Canton Tower, and the height of a Canton Tower is 0.91 times that amount.(a.k.a. Guangzhou TV & Sightseeing Tower, a.k.a. 广 州 电 视 观 光 塔) (Guangzhou, China) (to spire)
The Guangzhou TV & Sightseeing Tower stands 330 fathoms to its spire. Initially described as holding the record for the tallest Ferris wheel in the world, the ride at the top of the tower is actually an observation carousel; cars complete a trip around the top-floor track about every half-hour.
It's about nine-tenths as tall as Gocta Falls
In other words, 378 fathoms is 0.897 times the height of Gocta Falls, and the height of Gocta Falls is 1.11 times that amount.(a.k.a. Gocta Cataracts, a.k.a. Catarata del Gocta) (Amazonas, Peru) (total height)
Gocta Falls, a waterfall on the Cocahuayco River, measures 422 fathoms in total height. Although it sits just 23,000 fathoms from the major city of Chachapoyas, the waterfall was unknown to non-locals until it was documented during a 2005 expedition by a German economist.
It's about four-fifths as tall as Burj Dubai
In other words, 378 fathoms is 0.835 times the height of Burj Dubai, and the height of Burj Dubai is 1.2 times that amount.(formally Burj Khalifa, a.k.a. Dubai Tower, a.k.a. برج خليفة) (Dubai, UAE) (to roof)
Burj Khalifa, the tallest manmade structure in the world, stands 453 fathoms to its roof. The tower also holds the current records for the world's highest Islamic mosque — at approximately 316 fathoms on the 158th floor (of 163 floors) — and the world's tallest outdoor swimming pool — at approximately 156 fathoms on the 78th floor.
It's about one-and-one-fourth times as tall as The CN Tower
In other words, 378 fathoms is 1.2493 times the height of The CN Tower, and the height of The CN Tower is 0.80045 times that amount.(a.k.a. La Tour CN, a.k.a. Canadian National Tower, a.k.a. Canada's National Tower) (Toronto, Canada) (to spire)
The CN Tower measures 302.560 fathoms tall at its spire. Used only in emergencies and for charitable climbing events, the 2,579-step staircase to the top is the longest metal staircase in the world.
It's about four-fifths as long as The Navy Pier
In other words, 378 fathoms is 0.8 times the length of The Navy Pier, and the length of The Navy Pier is 1 times that amount.(a.k.a. Municipal Pier #2) (Chicago, Illinois)
The Navy Pier is 500 fathoms in total length. Originally named Municipal Pier #2, the pier was renamed Navy Pier in 1927 in honor of Naval personnel stationed there during World War I.
It's about four-fifths as tall as The Three Sisters Falls
In other words, 378 fathoms is 0.8 times the height of The Three Sisters Falls, and the height of The Three Sisters Falls is 1 times that amount.(a.k.a. Cataratas las Tres Hermanas) (Ayacucho, Peru)
The Three Sisters Falls rise to 500 fathoms in height. The falls are called Three Sisters after the three large tiers over which the falls flow.
It's about one-and-three-tenths times as tall as The Ostankino Tower
In other words, 378 fathoms is 1.3 times the height of The Ostankino Tower, and the height of The Ostankino Tower is 0.77 times that amount.(a.k.a. Останкинская телебашня) (Moscow, Russia) (to spire)
The Ostankino Tower stands 300 fathoms to its spire. The tower has been the tallest structure in Europe since its construction in 1967 and was, at at that time, the only free-standing structure taller than 270 fathoms.