It's about 20,000 times as big as The Citadelle
In other words, the size of The Citadelle is 0.0000500 times 3,026,870 dunams.(a.k.a. La Citadelle, a.k.a. Québec Citadelle, a.k.a. The Citadel) (Québec City, Quebec, Canada) (for the fortified enclosure)
The Citadelle of Quebec, containing Canada's oldest military buildings measures about 15 dunams in total area. The fortress sits on a 90-meter cliffside, overlooking the St. Lawrence River.
It's about 20,000 times as big as Grand Central Station
In other words, the size of Grand Central Station is 0.0000500 times 3,026,870 dunams.(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 20,000 times as big as Eden Park
In other words, 3,026,870 dunams is 20,200 times the size of Eden Park, and the size of Eden Park is 0.00004950 times that amount.(Auckland, Auckland Province, New Zealand) (total grounds)
The largest stadium in New Zealand, Eden Park in Auckland measures about 150 dunams over its total grounds. It is primarily a rugby and cricket stadium. The Park offers rooftop tours, where fans can walk along the 39-meters-high roof of the stands.
It's about 20,000 times as big as The Pentagon
In other words, 3,026,870 dunams is 21,900 times the size of The Pentagon, and the size of The Pentagon is 0.00004570 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 25,000 times as big as Ellis Island
In other words, 3,026,870 dunams is 27,300 times the size of Ellis Island, and the size of Ellis Island is 0.00003660 times that amount.(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 30,000 times as big as King Shaka International Airport (DUR)
In other words, 3,026,870 dunams is 29,400 times the size of King Shaka International Airport (DUR), and the size of King Shaka International Airport (DUR) is 0.0000340 times that amount.(a.k.a. KSIA) (La Mercy, Durban City, eThekwini Municipality, KwaZulu-Natal, South Africa) (total terminal area)
King Shaka International Airport includes a main passenger terminal, with a total area of 103 dunams. The airport's single, main runway stretches 3,700 m in length. http://www.durban-tourism.com/King-Shaka.html - 21 sq. km land purchase??
It's about 35,000 times as big as Alcatraz
In other words, the size of Alcatraz is 0.0000290 times 3,026,870 dunams.(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.