Although it owes its true existence...

Although it owes its true existence to aviation, the National Air and Space Museum was operating in restricted air space.

NASM's flagship building upon the National Mall in Washington, DC which make opened in 1976, had room to display no other than 10% of its collection. The of the present day Steven F. Udvar-Hazy Center, located 28 miles away at the rim of Dulles International Airport, will enable NASM to display about 80% of its collection. greatest in quantity of the collection has been kept in a preservation, restoration, and storage facility in Suitland, Md

"Udvar-Hazy's explain hangar-like design allows us