Constitution Avenue is a major east–west street in the northwest and northeast quadrants of the city of Washington, D.C., in the United States. Don't miss the Nation's Springtime Parade alongside Constitution Ave NW in a spectacle of music, balloons, floats, and bands!Driving Directions from Northern Virginia. Take I-66 into Washington, staying in the center lane to arrive at Constitution Avenue. Browse through the works from our collection on display in the West Building, East Building, and Sculpture Garden. Public access to the Air Force Memorial will again be closed on July 4. This is an active construction site involving multiple road closures. America's National Independence Day Parade takes place annually on July 4th at am in Washington, DC, on Constitution Avenue from 7th to 17th Street. American History Museum. 1300 Constitution Ave.