Editing Federal Triangle (section)

{{Short description|Collection of buildings in Washington, D.C.}}
{{Use mdy dates|date=October 2023}} {{Use American English|date=October 2023}}
{{Infobox protected area
| name = Federal Triangle
| iucn_category = 
| photo = Aerial view of Federal Triangle - facing west.jpg
| photo_caption = Aerial view of Federal Triangle (center), the [[National Mall]] (on left), and [[Downtown (Washington, D.C.)|Downtown Washington, D.C.]] (on right) in September 2006
| map_image = FederalTriangle WashingtonDC 2009.jpg
| map_caption = A diagram of Federal Triangle as of 2009, showing all 10 key buildings in the complex
| location = [[Washington, D.C.]], U.S.
| nearest_city = 
| coordinates = {{coord|38|53|34.8|N|77|01|48|W|region:US-DC|format=dms|display=inline,title}}
| coords_ref = 
| area_acre =
| area_ref =
| established = 
| visitation_num =  
| visitation_year = 
| governing_body =
| website =
}}

'''Federal Triangle''' is a [[Triangle|triangular]] area in [[Washington, D.C.]], formed by 15th Street NW, [[Constitution Avenue|Constitution Avenue NW]], [[Pennsylvania Avenue|Pennsylvania Avenue NW]], and E Street NW. Federal Triangle is occupied by 10 large city and federal office buildings, all of which are part of the [[Pennsylvania Avenue National Historic Site]]. Seven of the buildings in Federal Triangle were built by the [[Federal government of the United States|U.S. federal government]] in the early and mid-1930s as part of a coordinated construction plan that has been called "one of the greatest building projects ever undertaken".<ref>Lee, Antionette Josephine. ''Architects to the Nation: The Rise and Decline of the Supervising Architect's Office.'' New York: Oxford University Press US, 2000, p. 241. {{ISBN|0-19-512822-2}}</ref>  Two buildings predating this coordinated effort were incorporated into Federal Triangle, and one was constructed in the 1990s. 

[[Federal Triangle station]] is the [[Washington Metro]] station serving Federal Triangle and its immediately surrounding areas.