The National Gallery of Art and its Sculpture Garden is a national art museum, located on the National Mall

National Mall

The National Mall is an open-area national park in downtown Washington, D.C., the capital of the United States. The National Mall is a unit of the National Park Service , and is administered by the National Mall and Memorial Parks unit...

 between 3rd and 9th Streets at Constitution Avenue NW, in Washington, DC. Open to the public, free of charge, the museum was established in 1937 for the people of the United States of America by a joint resolution of the United States Congress

United States Congress

The United States Congress is the bicameral legislature of the federal government of the United States, consisting of the Senate and the House of Representatives. The Congress meets in the United States Capitol in Washington, D.C....

, with funds for construction and a substantial art collection donated by Andrew W. Mellon

Andrew W. Mellon

Andrew William Mellon was an American banker, industrialist, philanthropist, art collector and Secretary of the Treasury from March 4, 1921 until February 12, 1932.-Early life:...

.