
It's about oneandonetenth times as big as The Biltmore Estate
In other words, 16,500 square meters is 1.01 times the size of The Biltmore Estate, and the size of The Biltmore Estate is 0.990 times that amount.
(Asheville, North Carolina) (house only)The main house of Biltmore Estate covers 16,300 sq. m and contains 250 rooms. The fiftysix auxiliary buildings of the estate are interconnected through the nearly 71 km of roads on the Biltmore grounds.
It's about oneandonefifth times as big as The Great Banyan Tree
In other words, 16,500 square meters is 1.150 times the size of The Great Banyan Tree, and the size of The Great Banyan Tree is 0.870 times that amount.
(a.k.a. The Great Banyan, a.k.a. Ficus benghalensis) (Acharya Jagadish Chandra Bose Indian Botanic Garden, Howrah, West Bengal, India)The Great Banyan Tree is a single tree in the Indian Botanic Garden in West Bengal with aerial roots covering a total area of about 14,400 sq. m. While its exact age is unknown, the tree has been noted in guidebooks for over 200 years.
It's about oneandtwofifths times as big as Trafalgar Square
In other words, the size of Trafalgar Square is 0.710 times 16,500 square meters.
(a.k.a. Charing Cross) (City of Westminster, London, England, United Kingdom)Trafalgar Square, a public square in London, measures about 12,000 sq. m in total area. At the center of the Square is the 52 m Nelson's Column monument, built in the 1840s.
It's about half as big as The Lincoln Memorial Reflecting Pool
In other words, 16,500 square meters is 0.5240 times the size of The Lincoln Memorial Reflecting Pool, and the size of The Lincoln Memorial Reflecting Pool is 1.910 times that amount.
(Washington, D.C.) (pool surface area)The Lincoln Memorial Reflecting Pool has a water surface area of 31,500 sq. m. The Pool has a sloping bottom and extends to 80 cm (30 in) in depth at its center.
It's about two times as big as The Palace of Holyroodhouse
In other words, the size of The Palace of Holyroodhouse is 0.50 times 16,500 square meters.
(a.k.a. HolyroodÂ Palace) (Royal Mile, Old Town, Edinburgh, Scotland, United Kingdom) (Palace without gardens)The Palace of Holyroodhouse, the residence of the British Monarch in Scotland, measures about 8,100 sq. m, on a total grounds area of about 40,000 sq. m. Each year, the Palace hosts a Garden Party, serving 8,000 guests from a 150meterlong buffet table.
It's about two times as big as Seal Island
In other words, the size of Seal Island is 0.50 times 16,500 square meters.
(Western Cape province, South Africa)Seal Island, named for the tens of thousands of Cape Fur Seals that live there, measures about 8,100 sq. m. The large number seals attract great white sharks, who circle the island in a socalled "Ring of Death."
It's about two times as big as a City Block (Manhattan)
In other words, the size of a City Block (Manhattan) is 0.50 times 16,500 square meters.
(per Bridges, William  1811 Commissioner's Plan for New York City) (approximate)A Manhattan city block measures about 200 m between the NortheastSouthwest streets by about 60 m between the NorthwestSoutheast streets for a total area of about 10,000 sq. m. There are roughly 2,000 blocks within the city, representing one of the most prolific applications of the city planning grid plan in history. 
