The plane, first announced in 2003, was exciting for several reasons, including the fact that it's the world's first composite airliner, built without multiple aluminum sheets and thousands of fasteners.
Instead of building each aircraft under one roof, Boeing's factory in Everett, Washington receives pre-built pieces from factories around the world, allowing for a simpler assembly line, lower inventory and quicker production overall.
Our friends at Jaunted were lucky enough to get a tour of the factory floor, and have shared photos of their experience with us.
The massive building (it's the largest in the world, by volume) is filled with parts, completed airliners, and even a diner for the staff.