Pennsylvania Academy of the Fine Arts

The Pennsylvania Academy of the Fine Arts (PAFA) is a museum and art school in Philadelphia, Pennsylvania. It was founded in 1805 and is the first and oldest art museum and art school in the United States. The academy's museum is internationally known for its collections of 19th- and 20th-century American paintings, sculptures, and works on paper. Its archives house important materials for the study of American art history, museums, and art training. 

Source: pafa.org