It's about 0.0000000008 times as big as The Mall of America
In other words, 0.00000002850 hectares is 0.000000000730 times the size of The Mall of America, and the size of The Mall of America is 1,400,000,000 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 39 hectares. At the middle of the mall is a 2.80 hectares amusement park featuring 27 rides.
It's about 0.0000000007 times as big as Vatican City
In other words, 0.00000002850 hectares is 0.000000000650 times the size of Vatican City, and the size of Vatican City is 1,500,000,000 times that amount.(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 44 hectares 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 0.0000000005 times as big as Rizal Park
In other words, 0.00000002850 hectares is 0.000000000490 times the size of Rizal Park, and the size of Rizal Park is 2,000,000,000 times that amount.(a.k.a. Liwasang Rizal, a.k.a. Parque Rizal, a.k.a. Luneta Park, a.k.a. Luneta) (Ermita, Manila, Philippines)
Rizal Park covers 58 hectares on the edge of Manila Bay. The Park is an important site in Filipino history and is the traditional location for Independence Day celebrations and Presidential inaugurations.
It's about 0.0000000005 times as big as Eden Gardens Cricket Grounds
In other words, 0.00000002850 hectares is 0.0000000004695010 times the size of Eden Gardens Cricket Grounds, and the size of Eden Gardens Cricket Grounds is 2,129,920,000 times that amount.(Kolkata, West Bengal, India) (stadium size)
"The home of Indian cricket," Eden Gardens in Kolkata is one of the oldest and largest cricket grounds in India and covers 60.70280 hectares. It was at Eden Gardens that South Africa returned to cricket play in 1991, after a twenty-year suspension.
It's about 0.0000000005 times as big as Disneyland
In other words, 0.00000002850 hectares is 0.000000000440 times the size of Disneyland, and the size of Disneyland is 2,300,000,000 times that amount.(a.k.a. Disneyland Park) (Anaheim, California) (public areas)
The public areas of Disneyland occupy 65 hectares. 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 0.0000000004 times as big as The Forbidden City
In other words, 0.00000002850 hectares is 0.000000000390 times the size of The Forbidden City, and the size of The Forbidden City is 2,600,000,000 times that amount.(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 74 hectares. 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 0.00000000010 times as big as Monaco
In other words, 0.00000002850 hectares is 0.0000000001000 times the size of Monaco, and the size of Monaco is 10,000,000,000 times that amount.(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 200 hectares in total area.