Is 40,000 square meters as big as Alcatraz?
It's about half as big as Alcatraz
The size of Alcatraz is about 89,000 square meters.
(a.k.a. The Rock) (California)
Alcatraz Island measures 89,000 square meters. 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.
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