It's about one-and-one-fifth times as big as The Forbidden City.
In other words, the size of The Forbidden City is 0.830 times 891 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.
It's about one-and-two-fifths times as big as Disneyland.
In other words, the size of Disneyland is 0.710 times 891 dunams.(a.k.a. Disneyland Park) (Anaheim, California) (public areas)
The public areas of Disneyland occupy 650 dunams. The park consists of nine themed "stages" — including Main Street, U.S.A; Adventureland; Frontierland; Fantasyland; and Tomorrowland — with hidden passages that allow park employees to move between each without being seen by guests.
It's about two times as big as Vatican City.
In other words, the size of Vatican City is 0.50 times 891 dunams.(a.k.a. Holy See, a.k.a. State of the Vatican City, a.k.a. Stato della Città del Vaticano)
The world's smallest nation in both area and population, Vatican City is a walled enclave within Rome, Italy measuring 440 dunams in total area. Vatican City has been home to the Papacy since its incorporation in 1929 and the territory has been the home of Popes since 1377.
It's about two-and-a-half times as big as The Mall of America.
In other words, the size of The Mall of America is 0.430 times 891 dunams.(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-fifths as big as Monaco.
In other words, the size of Monaco is 3 times 891 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-fourth as big as Central Park.
In other words, 891 dunams is 0.2610 times the size of Central Park, and the size of Central Park is 3.830 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 four times as big as Washington National Cathedral.
In other words, 891 dunams is 3.90 times the size of Washington National Cathedral, and the size of Washington National Cathedral is 0.260 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.