Is 652.04 square millimeters as big as Alcatraz?
It's about 0.000000008 times as big as Alcatraz
The size of Alcatraz is about 89,000,000,000 square millimeters.
(a.k.a. The Rock) (California)
Alcatraz Island measures 89,000,000,000 square millimeters. 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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