It's about one-five-thousandth as big as Monaco.
In other words, the size of Monaco is 5,000 times 51 squares.(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 200,000 squares in total area.
It's about one-one-thousand-five-hundredth as big as The Forbidden City.
In other words, the size of The Forbidden City is 1,600 times 51 squares.(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 80,000 squares. 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-one-thousand-five-hundredth as big as Disneyland.
In other words, the size of Disneyland is 1,400 times 51 squares.(a.k.a. Disneyland Park) (Anaheim, California) (public areas)
The public areas of Disneyland occupy 70,000 squares. 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 one-nine-hundredth as big as Vatican City.
In other words, 51 squares is 0.0011 times the size of Vatican City, and the size of Vatican City is 910 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 47,000 squares 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 one-eight-hundred-fiftieth as big as The Mall of America.
In other words, the size of The Mall of America is 830 times 51 squares.(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 42,000 squares. At the middle of the mall is a 3,000 squares amusement park featuring 27 rides.
It's about one-five-hundredth as big as Grand Central Station.
In other words, the size of Grand Central Station is 500 times 51 squares.(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 20,000 squares in total area. The large flag which was suspended from the concourse ceiling following the September 11th 2001 terrorist attacks measures about 8 squares.
It's about one-five-hundredth as big as Washington National Cathedral.
In other words, 51 squares is 0.0021 times the size of Washington National Cathedral, and the size of Washington National Cathedral is 480 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, 25,000 squares plot.