<iframe src="http://www.npr.org/player/embed/134005667/134003301" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
Construction on the Pentagon didn't begin until the U.S. was about to enter World War II. The race to complete it is the inspiration behind a new book, The Pentagon: A History. Host Debbie Elliott speaks with author Steve Vogel.
NPR thanks our sponsors
Become an NPR sponsor