Take a look inside the Boeing factory where it builds its most iconic jets

• Boeing's Everett, Washington facility is one of the largest buildings in the world.
• It's where Boeing builds the 747, 767, 777, and 787 Dreamliner.
• Business Insider took a tour of the 777 and 787 production lines in October.

The Boeing 777 and the 787 Dreamliner are two of hottest selling wide-body airliners in the world. The dynamic duo has effectively supplanted the iconic 747 jumbo jet as the Boeing's go-to plane for long-haul flying.

At Boeing's Everett, Washington fact0ry, the two are also built side-by-side. Everett isn't Boeing's only factory. The 737 is built nearby in Renton, Washington while the 787-10 is produced exclusively in North Charleston, South Carolina.

But, Everett remains Boeing's most famous and storied production facility. According to Boeing, its Everett facility is large enough to encompass "all of Disneyland with 12 acres left over for parking."

In October, Boeing gave Business Insider a tour of the 777 and 787 production lines ahead of the delivery of the first Qantas 787-9 Dreamliner.

Here's an inside look at Boeing's Everett, Washington factory.