It's about 1,000 times as big as Central Park.
In other words, 3,500,000 dunams is 1,030 times the size of Central Park, and the size of Central Park is 0.000971 times that amount.(Manhattan, New York City, New York)
The most visited park in the country, Central Park has an area of 3,410 dunams. According to a 2005 appraisal, the real estate value of the Park's land is $528,783,552,000.
It's about 2,000 times as big as Monaco.
In other words, the size of Monaco is 0.0005 times 3,500,000 dunams.(a.k.a. the Principality of Monaco, a.k.a. Principauté de Monaco, a.k.a. Principatu de Múnegu)
One of the smallest nations in the world, Monaco is a city-state located on the French border of the Mediterranean Sea, which measures 2,000 dunams in total area.
It's about one-two-thousand-five-hundredth as big as Brazil.
In other words, 3,500,000 dunams is 0.0004110453 times the size of Brazil, and the size of Brazil is 2,432.8220 times that amount.(a.k.a. Brasil, formally the Federative Republic of Brazil, a.k.a. Rep&blica Federativa do Brasil)
Brazil measures 8,514,877,000 dunams in total area. Brazil is the world's fifth-largest country by area and eighth-largest economy (by GDP).
It's about one-two-thousand-five-hundredth as big as China.
In other words, 3,500,000 dunams is 0.0003646988 times the size of China, and the size of China is 2,741.9890 times that amount.(a.k.a. People's Republic of China, a.k.a. 中华人民共和国, a.k.a.中華人民共和國 , a.k.a. Zhōnghuá Rénmín Gònghég) (UN mainland area figure)
Mainland China, as measured by the United Nations (excluding China's Special Administrative Regions — Hong Kong and Macau — and disputed territories such as Taiwan, Askai Chin, and the Trans-Karakoram Tract), occupies 9,596,961,000 dunams in total area . China is the the most populous country in the world and the third or fourth largest (depending on areas included in the measurement) in total area.
It's about one-three-thousandth as big as United States.
In other words, 3,500,000 dunams is 0.0003561734 times the size of United States, and the size of United States is 2,807.6210 times that amount.(a.k.a. United States of America, a.k.a. America, a.k.a. USA, a.k.a. US)
The third or fourth largest country in the world (there is some dispute in how China's total area is measured), the United States measures 9,826,675,000 dunams in total area. The United States' economy is the fifth-largest in the world, comprising a quarter of nominal global GDP.
It's about one-three-thousandth as big as Canada.
In other words, 3,500,000 dunams is 0.000350537 times the size of Canada, and the size of Canada is 2,852.770 times that amount.Canada measures 9,984,670,000 dunams in total area. It is both the second-largest country in the world and one of the most-sparsely populated, in addition to having the longest coastline of any country in the world — 243,000 km (151,000 mi).
It's about 4,500 times as big as The Forbidden City.
In other words, the size of The Forbidden City is 0.00021 times 3,500,000 dunams.(a.k.a. Forbidden Palace, a.k.a. Purple Forbidden City, a.k.a. Zijin Cheng, a.k.a. Zǐjinchéng, a.k.a. 紫禁城) (Beijing, China)
The imperial palace complex of the Forbidden City consists of 980 buildings covering 740 dunams. The City was the home of Chinese Emperors and their cabinets from its construction in 1420 until the fall of the last ruling dynasty in 1912.