The first Boeing 747 took to the sky in 1969 and changed the aviation industry forever. This iconic plane ushered in a new golden age of air travel, but now it's being grounded for good to make way for more modern, fuel-efficient aircraft. Host Chad Zdenek joins a dismantling team in Mississippi to help break down one of the retired planes and reveal the five engineering innovations that made this "Queen of the Skies" a record-breaker.