The ambitious extension involves building larger concourses and adding three new runways (each with almost three miles of tarmac space), bringing the total number of active runways that can be used at the same time to five. There'll also be 64 airplane gates and a new, swanky air traffic control tower.
The first phase -- which will install two new runways and terminals to accommodate more than 120 million fliers -- could take between six to eight years to finish, Dubai Airports chief executive, Paul Griffiths, told USA Today.
Upon completion, though, more than 200 million passengers are expected to shuttle through the new-and-improved airport annually. Currently, the airport already handles 66.4 million passengers a year.
To see what the world's largest airport will look like, check out the video below.