EntityQ1141542· pop 10· linked from 467 articlesOld Post OfficeSign in to savehistoric building in Washington, D.C.ConnectionsWashington, D.C.EntityChicago TribuneEntityBoston GlobeEntityPennsylvania AvenueEntityWashington Union StationEntityWorld War II MemorialEntityUnited States Government Publishing OfficeEntityWillard InterContinental WashingtonEntityTreasury BuildingEntityAmerican City Business JournalsEntityBarack ObamaPersonDonald TrumpPersonNew York CityCityGeorge W. BushPersonLos AngelesEntitySoviet UnionConceptWorld War IConceptJohn F. KennedyPersonFranklin D. RooseveltPersonMarylandEntityCategories1899 establishments in Washington, D.C.Buildings and structures in Federal TriangleBuildings of the United States government in Washington, D.C.Clock towers in Washington, D.C.Government buildings completed in 1899Hilton Hotels & Resorts hotelsHilton WorldwideHotel buildings completed in 1899Hotels established in 2016Individually listed contributing properties to historic districts on the National Register in Washington, D.C.