The Martin Luther King, Jr. Memorial is located in West Potomac Park in Washington, D.C., southwest of the National Mall (but within the larger area commonly referred to as the "National Mall"). The national memorial is America's 395th unit in the national park service. The monumental memorial is located at the northwest corner of the Tidal Basin near the Franklin Delano Roosevelt Memorial, on a sightline linking the Lincoln Memorial to the northwest and the Jefferson Memorial to the southeast. The official address of the monument, 1964 Independence Avenue, S.W., commemorates the year the Civil Rights Act of 1964 became law.