This beautiful and highly functional combination hangar, general office building and parking garage was designed by Francis in the late 60's for the Dade County Port Authority for use by National Airlines. It was completed in the early 70's. The corporate headquarters for National was in the eleven story office building on the south side of the hangar, along with a large parking garage, and they anchored the cantilever roof of the hangar so that all the hangar doors can be opened. The hangar can accommodate 2 classic Boeing 747's and 1 DC-10 (same aircraft as seen in the photo) with the doors closed behind them.
Pan Am utilized the building after they bought National in 1980. Pan Am died on December 4, 1991, and the hangar was vacant for several years until code enhancements were done and American Airlines leased it in the mid to late 90's.