The great Megafactories on earth - Boeing Factory

The Boeing Everett Factory, in Everett, Washington, is an airplane assembly building owned by Boeing. Located on the northeast corner of Paine Field, it is the largest building in the world by volume at 13,385,378 m3 (472,370,319 cu ft) and covers 399,480 m2 (98.7 acres). This is the factory where the wide-body Boeing 747, 767, 777, and 787 are assembled.