It's about forty times as big as Tshwane
In other words, 253,336,000 dunams is 39.780 times the size of Tshwane, and the size of Tshwane is 0.02514 times that amount.(a.k.a. Pretoria, a.k.a. ePitoli, a.k.a. Jacaranda City) (Gauteng, South Africa) (for Tshwane metro area)
Tshwane, South Africa's executive capital, measures 6,368,000 dunams in total metro area. The Reserve Bank of South Africa is the city's tallest building at 150 m in height.
It's about 45 times as big as Prince Edward Island
In other words, 253,336,000 dunams is 44.57070 times the size of Prince Edward Island, and the size of Prince Edward Island is 0.0224363 times that amount.(a.k.a. PEI, a.k.a. P.E.I., a.k.a. Île-du-Prince-Édouard, a.k.a. Eilean a' Phrionnsa, a.k.a. Garden of the Gulf, a.k.a. Birthplace of the Confederation, a.k.a. Île Saint-Jean)
Prince Edward Island, located off Canada's eastern coast in the Gulf of St. Lawrence, measures 5,683,910 dunams in total area. Significant among Prince Edward Island's industries is agriculture, with the island producing 1.3 billion kg (1.4 million tons) of potatoes each year — almost 21% the output of the US state of Idaho with 3% as much land.
It's about 50 times as big as Calgary
In other words, 253,336,000 dunams is 49.57450 times the size of Calgary, and the size of Calgary is 0.0201717 times that amount.(Calgary metro) (Canada)
One of the largest cities in Canada, Calgary measures 5,110,210 dunams. Calgary has a large parks system, with 800 km of pathways connecting the city's various parks.
It's about 50 times as big as Grand Canyon National Park
In other words, 253,336,000 dunams is 51.38045440 times the size of Grand Canyon National Park, and the size of Grand Canyon National Park is 0.0194626539 times that amount.(Coconino County and Mohave Counties, Arizona, near Fredonia and Grand Canyon, Arizona)
Containing the 446 km (277 mi) Grand Canyon gorge, Grand Canyon National Park covers 4,930,590 dunams.
It's about 55 times as big as Fort Bliss
In other words, 253,336,000 dunams is 55.90 times the size of Fort Bliss, and the size of Fort Bliss is 0.0179 times that amount.(near Las Cruces, New Mexico and El Paso, Texas)
Fort Bliss is the United States Army's second-largest installation with a total area of 4,530,000 dunams. It is known as the largest TRADOC (Training and Doctrine Command) site, the Army's largest maneuver area, and the country's largest contiguous tract of open airspace.
It's about 60 times as big as Kangaroo Island
In other words, 253,336,000 dunams is 57.510 times the size of Kangaroo Island, and the size of Kangaroo Island is 0.01739 times that amount.(a.k.a. Karta) (state of South Australia, Australia)
Kangaroo Island, off the southern coast of Australia, measures 4,405,000 dunams in total area. The island is famous for its ligurian bee colonies, exporting over 100 tonnes of honey each year.
It's about 65 times as big as Rhode Island
In other words, 253,336,000 dunams is 63.30770 times the size of Rhode Island, and the size of Rhode Island is 0.0157959 times that amount.(a.k.a. The State of Rhode Island and Providence Plantations, a.k.a. RI) (United States)
The "Ocean State," Rhode Island measures 4,001,660 dunams in total area. Several large bays totaling 2,706,000 dunams make up 32.4% of its total area.