Known as the "Queen of the Skies," the 747 was the world's first twin-aisle jetliner, which Boeing designed and built in 28 months and Pan Am introduced in 1970.

Boeing's Everett, Washington, facility has been the 747's production site since the plane's conception. Built in 1967 to produce the mammoth jet, it remains the world's largest manufacturing plant according to Boeing.

But after five decades, customer demand for the 747 eroded as Boeing and Airbus developed more fuel efficient two-engine wide-body planes. When Boeing confirmed in July 2020 that it would end 747 production, it was already only producing at a rate of half an aircraft a month - a pace that continued through the final years of the program.

Thousands of Boeing employees - including some of the so-called "Incredibles" who developed the jet in the 1960s - watched the last delivery of the historic plane, which brought air travel to the masses and represented an indelible slice of Americana.