It's about four-fifths as big as a Polo field.
In other words, 10 acres is 0.8066666670 times the size of a Polo field, and the size of a Polo field is 1.239669420 times that amount.(for field polo) (United States Polo Association rules; unboarded side maximum)
An outdoor polo field must measure 274.32 m in length and 146.304 m to in width for a total playing area of up to 12.39669420 acres. Polo traces its origins to an Iranian (then Persian) war game from the 5th Century, which was played with as many as 100 players per side.
It's about one-and-three-tenths times as big as The Lincoln Memorial Reflecting Pool.
In other words, 10 acres is 1.280 times the size of The Lincoln Memorial Reflecting Pool, and the size of The Lincoln Memorial Reflecting Pool is 0.7810 times that amount.(Washington, D.C.) (pool surface area)
The Lincoln Memorial Reflecting Pool has a water surface area of 7.780 acres. The Pool has a sloping bottom and extends to 80 cm (30 in) in depth at its center.
It's about three-fourths as big as Windsor Castle.
In other words, the size of Windsor Castle is 1.30 times 10 acres.(Windsor, England) (total site area)
One of the official residences of the British monarch, Windsor Castle measures about 13 acres. It is the largest inhabited castle in the world and is also the oldest in continuous use, having been occupied since it was built by William the Conqueror about 900 years ago.
It's about half as big as Buckingham Palace.
In other words, 10 acres is 0.530 times the size of Buckingham Palace, and the size of Buckingham Palace is 1.90 times that amount.(a.k.a. Buckingham House) (Westminster, London, England)
Buckingham Palace, the official residence of the British monarch, contains about 19 acres of total floor space. The palace was first inhabited by Queen Victoria in 1831, although after the death of her husband in 1861, the Queen endeavored to spend as little time there as public opinion would allow.
It's about half as big as Alcatraz.
In other words, 10 acres is 0.450 times the size of Alcatraz, and the size of Alcatraz is 2.20 times that amount.(a.k.a. The Rock) (California)
Alcatraz Island measures 22 acres. It is known a part of the Golden Gate National Recreation Area, and has historically served as a lighthouse, fort, military prison, and — most famously — a federal prison.
It's about two-and-a-half times as big as The Kennedy Center.
In other words, the size of The Kennedy Center is 0.420 times 10 acres.(a.k.a. John F. Kennedy Memorial Center for the Performing Arts) (Washington, DC)
Hosting over 2,000 performances and nearly two million audience members annually — including events and guests for presidential inaugurations and galas — the Kennedy Center is approximately 4.20 acres in total area.
It's about two-and-a-half times as big as The Biltmore Estate.
In other words, 10 acres is 2.480 times the size of The Biltmore Estate, and the size of The Biltmore Estate is 0.4030 times that amount.(Asheville, North Carolina) (house only)
The main house of Biltmore Estate covers 4.03 acres and contains 250 rooms. The fifty-six auxiliary buildings of the estate are interconnected through the nearly 71 km of roads on the Biltmore grounds.