It's about 300 times as big as The Mall of America
In other words, 30,000 acres is 310 times the size of The Mall of America, and the size of The Mall of America is 0.003 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 96 acres. At the middle of the mall is a 6.90 acres amusement park featuring 27 rides.
It's about one-five-hundredth as big as Lake Michigan
In other words, 30,000 acres is 0.002 times the size of Lake Michigan, and the size of Lake Michigan is 476 times that amount.(surface area)
The third largest of North America's Great Lakes (by surface area), Lake Michigan has a total area of 14,300,000 acres. It borders the cities of Chicago, Illinois; Milwaukee, Wisconsin; and Green Bay, Wisconsin
It's about one-five-hundredth as big as Lake Huron
In other words, 30,000 acres is 0.0020 times the size of Lake Huron, and the size of Lake Huron is 490 times that amount.(a.k.a. Lac Huron) (surface area)
The second largest of North America's Great Lakes (by surface area), Lake Huron has a total area of 14,700,000 acres. It borders the cities of Sarnia, Ontario, Canada, and Bay City, Michigan.
It's about 500 times as big as Soccer City
In other words, 30,000 acres is 510 times the size of Soccer City , and the size of Soccer City is 0.00 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 59 acres 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 550 times as big as Washington National Cathedral
In other words, 30,000 acres is 530 times the size of Washington National Cathedral, and the size of Washington National Cathedral is 0.002 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, 57 acres plot.
It's about 550 times as big as The United States Capitol
In other words, 30,000 acres is 530 times the size of The United States Capitol, and the size of The United States Capitol is 0.002 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 57 acres 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 600 times as big as Grand Central Station
In other words, 30,000 acres is 600 times the size of Grand Central Station, and the size of Grand Central Station is 0.00 times that amount.(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 50 acres in total area. The large flag which was suspended from the concourse ceiling following the September 11th 2001 terrorist attacks measures about 0.02 acres.