The National Gallery in Washington, D.C. features an extensive collection of artworks spanning from the 13th to the 20th century, highlighting significant artists such as Giotto, Durer, Raphael, and Velazquez. The document discusses various portraits and their historical contexts, emphasizing techniques, styles, and the status of women depicted in art. Additionally, it notes how certain artists, like Rembrandt and Toulouse-Lautrec, contributed uniquely to the evolution of portraiture and genre painting.