MapFight - Boeing Everett Factory size comparison
https://mapfight.xyz/map/boeingPlaces double the size of Boeing Everett Factory. Pentagon building (US) is 1.50 times as big. Average golf course is 1.25 times as big. Le Mont-Saint-Michel (France) is 2.42 times as big. Hart Island (New York) is 1.33 times as big. Square Kilometer is 2.50 times as big. Hans island is 3.25 times as big. Hyde Park (London) is 3.50 times as big.