It's about as big as Grand Central Station.
(formally Grand Central Terminal, a.k.a. Grand Central, a.k.a. GCT) (New York City, New York) (total terminal area). Grand Central station, the largest train station in the world by platform count, measures 200 dunams in total area. The large flag which was suspended from the concourse ceiling following the September 11th 2001 terrorist attacks measures about 0.07 dunams.
It's about nine-tenths as big as Washington National Cathedral.
In other words, 200 dunams is 0.87 times the size of Washington National Cathedral, and the size of Washington National Cathedral is 1.1 times that amount.(a.k.a. Cathedral Church of Saint Peter and Saint Paul) (Washington, DC) (total plot)
Sitting atop the 115 m (377 ft) tall Mount Saint Alban at the corner of Massachusetts and Wisconsin Avenues, Washington National Cathedral sits on a landscaped, 230 dunams plot.
It's about nine-tenths as big as The United States Capitol.
In other words, 200 dunams is 0.87 times the size of The United States Capitol, and the size of The United States Capitol is 1.1 times that amount.(Washington, DC) (Immediate grounds size)
The grounds of United States Capitol, at the center of Washington DC's quadrants, consists of about seventeen buildings on a 230 dunams plot. While the Capitol Building is the central feature, other buildings include the Supreme Court Buildings and the Library of Congress Buildings, as well as several monuments and sculptures.
It's about one-and-two-fifths times as big as The Pentagon.
In other words, 200 dunams is 1.45 times the size of The Pentagon, and the size of The Pentagon is 0.69 times that amount.(a.k.a. United States Department of Defense Headquarters) (Washington, D.C.) (total floor area)
The Pentagon, the world's largest office building, contains a total floor area of 138 dunams. Built during World War II, the designers compensated for the steel rations then in effect by using 310,000 cu. m of concrete in the construction efforts.
It's about one-and-four-fifths times as big as Ellis Island.
In other words, the size of Ellis Island is 0.556 times 200 dunams.(Jersey City, New Jersey and New York City, New York)(now officially part of the Statue of Liberty National Monument)
Ellis Island, home of the Ellis Island Immigration Station, is 111 dunams in total area. Nine-tenths of the island were artificially created after the New York-New Jersey borders had already been defined, leading to a sovereignty dispute which was settled by the US Supreme Court in 1998.
It's about half as big as The Mall of America.
In other words, 200 dunams is 0.51 times the size of The Mall of America, and the size of The Mall of America is 2 times that amount.(a.k.a. MOA, a.k.a. MoA, a.k.a. Megamall) (Bloomington, Minnesota) (total area)
The Mall of America contains over 520 stores and 6.92 km (4.3 miles) of total store frontage in an area totaling 390 dunams. At the middle of the mall is a 28 dunams amusement park featuring 27 rides.
It's about two times as big as Alcatraz.
In other words, 200 dunams is 2.2 times the size of Alcatraz, and the size of Alcatraz is 0.45 times that amount.(a.k.a. The Rock) (California)
Alcatraz Island measures 89 dunams. It is known a part of the Golden Gate National Recreation Area, and has historically served as a lighthouse, fort, military prison, and — most famously — a federal prison.