Here is a great series of photos we found at the Library of Congress showing Dulles Airport during construction.

Dulles Airport construction model
Dulles Airport construction model
Dulles Airport tower being built
Dulles Airport tower being built
Interior of Dulles Airport terminal
Interior of Dulles Airport terminal
Interior of terminal
Interior of terminal
Dulles Airport terminal building
Dulles Airport terminal building

And finally, here’s a post-construction photo from the parking lot, looking at the new terminal.

Dulles Airport at night
Dulles Airport at night

Source: Library of Congress