World's largest building by volume.This is the Boeing Everett Factory in Washington.Built in 1967 to assemble the Boeing 747, this factory covers 98 acres under one roof.The building is over 13 stories tall and 3,000 feet long.Inside, Boeing assembles some of the largest aircraft in the world, including the 767, 777, and 787 Dreamliner. The logistics are insane. Parts arrive by giant cargo planes, custom trains, and even modified 747s called Dreamlifters. | Aviation