The residence of the Sultan of Brunei, at over 2,000,000 square feet, is credited as the largest private residence in the world. However, it also serves as the official government building of the country and, as such, may not really be entirely a private residence. Buckingham Palace may be a more accurate answer at 828,818 square feet. However, it also is considered a residence of state and, may not qualify. The Queen's official residence is Windsor Castle, which at 484,000 square feet is often sited as the largest occupied castle in the world. If we assume that royal residences are not private, and we limit ourselves to non-royal or heads of state residences, The Biltmore at 175,000 square feet is often mentioned. However, while still owned by the Vanderbilt family, it is not currently being used as a private residence. Blenheim Palace is still owned and occupied by John George Vanderbilt Henry Spencer-Churchill, 11th Duke of Marlborough(Yes, the Churchill of Winston Churchhill, the Vanderbilt of Builtmore and the Spencer of Princess Diana). Noble but not royal. Its exact size is not publicly disclosed but clearly is similar in size to The Biltmore, perhaps larger. Bill Gates house is about 50,000 square feet. Michael Ferguson
Alaska
in mississipi
The Virginia Aquarium is the largest in the United States.
Seven !
Asheville, North Carolina
Washington State
US
The largest reigon of mountains are the Rocky Mountains located in Colorado.
Clearfield, Pennsylvania - World's Largest Hamburgers
The County Court House is located in the County Seat, which is generally the oldest and often the largest city in that county. Note: In some southern States of the US, they use Parishes instead of Counties.
The largest student dormitory in the USA is located at The US Naval Academy.
The Biltmore House is the largest privately owned residence in the US, at 175,000 sq. feet.