It's about 5,500,000 times as big as The Philippine Arena
In other words, the size of The Philippine Arena is 0.000000190 times 213,096,000 dunams.(Ciudad De Victoria, Bocaue - Bulacan, Philippines) (total footprint)
The largest indoor arena in the world, the multi-use Philippine Area has a total footprint of 40 dunams, with the dome itself occupying 36 dunams. The floor the arena contains over 9,000 tons of steel.
It's about 5,500,000 times as big as Federation Square
In other words, the size of Federation Square is 0.000000180 times 213,096,000 dunams.(Melbourne, Victoria, Australia)
Federation Square, the large public square in the city center of Melbourne, measures 38 dunams. The main portion of the square is floored with sandstone blocks from Western Australia.
It's about 7,000,000 times as big as The Lincoln Memorial Reflecting Pool
In other words, 213,096,000 dunams is 6,760,000 times the size of The Lincoln Memorial Reflecting Pool, and the size of The Lincoln Memorial Reflecting Pool is 0.0000001480 times that amount.(Washington, D.C.) (pool surface area)
The Lincoln Memorial Reflecting Pool has a water surface area of 31.50 dunams. The Pool has a sloping bottom and extends to 80 cm (30 in) in depth at its center.
It's about 15,000,000 times as big as The Biltmore Estate
In other words, 213,096,000 dunams is 13,100,000 times the size of The Biltmore Estate, and the size of The Biltmore Estate is 0.00000007630 times that amount.(Asheville, North Carolina) (house only)
The main house of Biltmore Estate covers 16.30 dunams 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.
It's about 15,000,000 times as big as The Great Banyan Tree
In other words, 213,096,000 dunams is 14,800,000 times the size of The Great Banyan Tree, and the size of The Great Banyan Tree is 0.00000006760 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 14.40 dunams. While its exact age is unknown, the tree has been noted in guidebooks for over 200 years.
It's about 20,000,000 times as big as a City Block (Manhattan)
In other words, the size of a City Block (Manhattan) is 0.0000000500 times 213,096,000 dunams.(per Bridges, William - 1811 Commissioner's Plan for New York City) (approximate)
A Manhattan city block measures about 200 m between the Northeast-Southwest streets by about 60 m between the Northwest-Southeast streets for a total area of about 10 dunams. There are roughly 2,000 blocks within the city, representing one of the most prolific applications of the city planning grid plan in history.
It's about 25,000,000 times as big as Seal Island
In other words, the size of Seal Island is 0.0000000380 times 213,096,000 dunams.(Western Cape province, South Africa)
Seal Island, named for the tens of thousands of Cape Fur Seals that live there, measures about 8.10 dunams. The large number seals attract great white sharks, who circle the island in a so-called "Ring of Death."