Which innovative retail layout feature was first introduced at the Pentagon Shopping Center in 1955, later becoming standard in civilian malls across America?

The Pentagon, headquarters of the U.S. Department of Defense, is known for its military operations, but it also houses one of the most unique retail environments in government. This trivia question explores how retail innovation and military operations intersect in this iconic building, highlighting how retail spaces have been strategically designed within military installations to serve personnel while maintaining operational security.

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The first food court with multiple vendors in a central dining area
Self-service checkout kiosks with automated inventory tracking
Concentric circle layout with security checkpoints between retail zones
Digital directory boards with classified and unclassified shopping sections