It's about twelve times as tall as Napoleon
In other words, 21 meters is 12 times the height of Napoleon, and the height of Napoleon is 0.08 times that amount.(a.k.a. Napoleon Bonaparte; a.k.a. Napoleon I, a.k.a. Napoleone di Buonaparte) (1759-1821) (French leader)
Despite his frequent characterizations as much shorter than average, Napoleon was a period-average height of approximately 1.70 m. The mis-characterizations have been attributed to British propaganda and to the confusion between French and British units of measurements used at the time.
It's about fourteen times as tall as Danny DeVito
In other words, 21 meters is 14 times the height of Danny DeVito, and the height of Danny DeVito is 0.07 times that amount.(a.k.a. Daniel Michael DeVito, Jr.) (1944-) (actor)
Danny DeVito, best known for his role as Louie De Palma in the 1978-83 television series Taxi, is 1.5 m tall. After graduating from high school, DeVito became a licensed cosmetician and it was out of interest in cosmetology that he first enrolled at the American Academy of Dramatic Arts and later began to study acting.
It's about one-fifteenth as long as The QE2
In other words, 21 meters is 0.071 times the length of The QE2, and the length of The QE2 is 14 times that amount.(a.k.a. RMS Queen Elizabeth 2)
The QE2 has a total length of 294 m. During its voyaging lifetime from 1969 through 2008, it travelled more than 9,600,000,000 meters, the furthest cumulative distance by any ship in modern history.
It's about fifteen times as tall as Gary Coleman
In other words, 21 meters is 15 times the height of Gary Coleman, and the height of Gary Coleman is 0.07 times that amount.(a.k.a. Gary Wayne Coleman) (1978-2009) (actor)
Gary Coleman, most famous for his role as Arnold Jackson on the sitcom Diff'rent Strokes was 1.4 m tall. His small stature was a result of a congenital kidney disease. Coleman worked as a security guard since following his career as an actor.
It's about one-fifteenth as tall as The Eiffel Tower
In other words, 21 meters is 0.065 times the height of The Eiffel Tower, and the height of The Eiffel Tower is 15.4 times that amount.(a.k.a. La Tour Eiffel) (Paris, France) (to flagpole peak)
The Eiffel Tower stands 324 m tall, including its flagpole. The Tower is the largest structure in Paris as most other buildings are governed by a zoning restriction limiting them to a height of 37 m or less.
It's about sixteen times as tall as Matt Roloff
In other words, 21 meters is 16 times the height of Matt Roloff, and the height of Matt Roloff is 0.06 times that amount.(1961-) (actor and reality television star)
Matt Roloff, most famous for his role on the reality television show Little People, Big World, is an LP with a height of 1.3 m. In 1985, Roloff stared as an Ewok — one of the small, woodland creatures from the Star Wars franchise — in the movie Ewoks: The Battle for Endor
It's about eighteen times as tall as Hervé Villechaize
In other words, 21 meters is 18 times the height of Hervé Villechaize, and the height of Hervé Villechaize is 0.06 times that amount.(a.k.a. Hervé Jean-Pierre Villechaize) (1943-1993) (actor)
Hervé Villechaize, most famous for his role as Tattoo on the 1978-84 television series Fantasy Island, was an LP with a height of 1.2 m. Villechaize's form of dwarfism, spondyloepiphyseal dysplasia-brachydactyly and distinctive speech (SED-BDS), is also known as "Tattoo dysplasia" or "Fantasy Island syndrome."