Covering 29 acres, the world's largest office building is this structure in Arlington, Virginia
The full ... members of 
the military; patches from the Arlington County, Virginia, fire and police... [DOC] [TLE] The Pentagon - Infoplease [PAR] The world's largest office building, the Pentagon is synonymous with the 
Department of ... 1941, ground was broken in Arlington Country, Virginia, for a 
huge new building to house ...