It's about 25,000 times as tall as Angel Falls
In other words, 21,000,000 ells is 24,500 times the height of Angel Falls, and the height of Angel Falls is 0.00004080 times that amount.(a.k.a. Parakupa-vena, a.k.a. Kerepakupai mer&) (Auyantepui, Canaima National Park, Venezuela) (total height)
Angel Falls has a total height 857 ells. Jimmie Angel, the first person to publicize their existence outside Venezuela and the namesake of the falls, damaged his monoplane atop the falls and was forced to abandon it; it remained there until it was removed 33 years later.
It's about 25,000 times as tall as Tugela Falls
In other words, 21,000,000 ells is 25,300 times the height of Tugela Falls, and the height of Tugela Falls is 0.00003950 times that amount.(Royal Natal National Park, KwaZulu-Natal, South Africa)
Tugela Falls rises to 829 ells in height. The falls are the highest in Africa and the second highest in the world.
It's about 25,000 times as tall as Olo'upena Falls
In other words, 21,000,000 ells is 26,670 times the height of Olo'upena Falls, and the height of Olo'upena Falls is 0.00003750 times that amount.(a.k.a. Oloupena Falls) (Molokai, Hawaii)
Olo'upena Falls rise to 787.50 ells in height. The isolated falls are the tallest in the United States and the fourth tallest in the world.
It's about 30,000 times as tall as Burj Dubai
In other words, 21,000,000 ells is 29,000 times the height of Burj Dubai, and the height of Burj Dubai is 0.00003450 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 724 ells to its roof. The tower also holds the current records for the world's highest Islamic mosque — at approximately 505 ells on the 158th floor (of 163 floors) — and the world's tallest outdoor swimming pool — at approximately 249 ells on the 78th floor.
It's about 30,000 times as long as The Navy Pier
In other words, the length of The Navy Pier is 0.0000300 times 21,000,000 ells.(a.k.a. Municipal Pier #2) (Chicago, Illinois)
The Navy Pier is 800 ells 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 30,000 times as tall as The Three Sisters Falls
In other words, the height of The Three Sisters Falls is 0.0000300 times 21,000,000 ells.(a.k.a. Cataratas las Tres Hermanas) (Ayacucho, Peru)
The Three Sisters Falls rise to 800 ells in height. The falls are called Three Sisters after the three large tiers over which the falls flow.
It's about 30,000 times as tall as Gocta Falls
In other words, 21,000,000 ells is 31,100 times the height of Gocta Falls, and the height of Gocta Falls is 0.00003220 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 675 ells in total height. Although it sits just 36,700 ells 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.