Experience a unique wedding celebration aboard a chartered Boeing 747-400 operated by Aquiline International, departing from ...

The Boeing 747-8 is currently the world's longest commercial jet in history with a fuselage measuring 250 ft 2 in (76.25 m), eclipsing the Airbus A340, which was 247 feet (75.30 meters) long.

Today, with hindsight being 20/20, we know how the Boeing 747 revolutionized air travel. But that was anything but a sure thing back when it was still on the drawing board in the mid-1960s.

The exact cost of the jumbo jet isn't clear, but a new 747-8 can fetch a cool $400 million. It's also unclear what it may cost to retrofit with necessary communications and security features.