The Boeing 747, known as the "Queen of the Skies," revolutionized air travel since its first flight in 1969. It's now mostly a cargo plane, and the last 747 just rolled off Boeing's production lines.

Boeing's 747, the original and arguably most aesthetic "Jumbo Jet", revolutionized air travel only to see its more than five-decade reign as "Queen of the Skies" ended by more efficient twinjet ...