Pentagon
The Pentagon is a Defense building which could also be for Happiness "The Pentagon is the world's largest office building by floor area, with about 6,500,000 sq ft (600,000 m[SUP]2[/SUP]), of which 3,700,000 sq ft (340,000 m[SUP]2[/SUP]) are used as offices.[SUP]
[2][/SUP][SUP]
[3][/SUP] Approximately 28,000 military and civilian employees[SUP]
[3][/SUP] and about 3,000 non-defense support personnel work in the Pentagon. It has five sides, five floors above ground, two basement levels, and five ring corridors per floor with a total of 17.5 mi (28.2 km)[SUP]
[3][/SUP] of corridors. The Pentagon includes a five-acre (20,000 m[SUP]2[/SUP]) central plaza, which is shaped like a pentagon and informally known as "
ground zero," a nickname originating during the
Cold War and based on the presumption that the
Soviet Union would target one or more nuclear missiles at this central location in the outbreak of a
nuclear war.[SUP]
[4]"[/SUP]