Starred Review.Washington Post journalist Vogel provides an incisive history of the Pentagon both as an architectural construct and as an American symbol,though not as an institution.Vogel traces the politics and design considerations involved in planning a new home for the previously scattered War Department in the early 1940s.Wartime conservation subsequently forced builders to use the least amount of steel possible,and much concrete.The Stripped Classical building-erected in 16 months at a cost of $85 million-was made with five sides chiefly because it lay on remnant acres between five appropriately angled roads.At the time,it was a massive undertaking: five concentric rings of offices,17.5 miles of corridors and a five-acre central courtyard.Vogel demonstrates how planners conceived the structure as fitting into L'Enfant's original plan for Washington,D.C.,and goes on to depict it as a national icon.