It's about 10,000 times as big as Soccer City
In other words, 2,706,000 dunams is 11,000 times the size of Soccer City , and the size of Soccer City is 0.0000910 times that amount.(a.k.a. FNB Stadium, a.k.a. First National Bank Stadium, a.k.a. The Calabash) (Cape Town, Western Cape province, South Africa) (Nasrec, Johannesburg, Gauteng, South Africa) (total stadium footprint)
Soccer City, the football (soccer) and rugby stadium measures 240 dunams and is the largest stadium in the country of South Africa and largest on the continent of Africa. The Stadium was the site of Nelson Mandela's first public speech upon being released from prison, and the site of Mandela's public memorial in 2013.
It's about 10,000 times as big as Washington National Cathedral
In other words, 2,706,000 dunams is 12,000 times the size of Washington National Cathedral, and the size of Washington National Cathedral is 0.0000830 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 10,000 times as big as The United States Capitol
In other words, 2,706,000 dunams is 12,000 times the size of The United States Capitol, and the size of The United States Capitol is 0.0000830 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 20,000 times as big as Eden Park
In other words, 2,706,000 dunams is 18,000 times the size of Eden Park, and the size of Eden Park is 0.00005560 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, 2,706,000 dunams is 19,600 times the size of The Pentagon, and the size of The Pentagon is 0.0000510 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, 2,706,000 dunams is 24,400 times the size of Ellis Island, and the size of Ellis Island is 0.0000410 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 Alcatraz
In other words, the size of Alcatraz is 0.0000330 times 2,706,000 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.