Pennsylvania Avenue National Historic Site
- Address: Pennsylvania Ave
- Vicinity: Roughly bounded by Constitution Ave, F St, 3rd St and 15th St NW
- Neighborhood of Penn Quarter in Washington, DC
Pennsylvania Avenue is certainly among the world's most famous streets. While the Avenue serves work-a-day Washington as a major east-west transit route, it is known the world over as the heart of the Nation's Capital. Many Presidential inauguration parades and political protest marches have taken place along Pennsylvania Avenue. On September 30, 1965, the Secretary of the Interior, with the President's concurrence, designated it the Pennsylvania Avenue National Historic Site, encompassing the Avenue between the Capitol and the White House, and a number of blocks around it. - NPS